Hardness focus

medium Gemstones

Compare durability and finishing options for gemstones in this hardness range.

All hardness levels

Adularia

Adularia is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Agate

Agate is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Alexandrite

Alexandrite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Allanite

Allanite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Almandine

Almandine is a Red, Green silicate (garnet) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Burgundy
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Amazonite

Amazonite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Amethyst

Amethyst is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Ametrine

Ametrine is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Andalusite

Andalusite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Andradite

Andradite is a Red, Green silicate (garnet) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Burgundy
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Apatite

Apatite is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Apophyllite

Apophyllite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Aqua Aura Quartz

Aqua Aura Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Aqua, Blue
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Astro Stone

Astro Stone is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Astrophyllite

Astrophyllite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Aurora Quartz

Aurora Quartz is a Multicolour silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Multicolour
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Aventurine

Aventurine is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Azurite

Azurite is a Blue, Green phosphate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6 Mohs Blue, Green
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Black Jade

Black Jade is a Black silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Black
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Black Tourmaline

Black Tourmaline is a Black cyclosilicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Black
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Bloodstone

Bloodstone is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Blue Apatite

Blue Apatite is a Blue silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Blue
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Blue Chalcedony

Blue Chalcedony is a Blue silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Blue
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Blue Goldstone

Blue Goldstone is a Blue, Gold silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Blue, Gold
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Blue Lace Agate

Blue Lace Agate is a Blue silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Blue
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Blue Moonstone

Blue Moonstone is a Blue silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Blue
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Blue Quartz

Blue Quartz is a Blue silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Blue
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Botswana Agate

Botswana Agate is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Bumblebee Jasper

Bumblebee Jasper is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Cactus Quartz

Cactus Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Carnelian

Carnelian is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Cat's Eye Apatite

Cat's Eye Apatite is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Cat's Eye Moonstone

Cat's Eye Moonstone is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Cat's Eye Quartz

Cat's Eye Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Cherry Quartz

Cherry Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Chevron Amethyst

Chevron Amethyst is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Chrome Diopside

Chrome Diopside is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Chrome Garnet

Chrome Garnet is a Red, Green silicate (garnet) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Burgundy
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Chrysanthemum Stone

Chrysanthemum Stone is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Chrysocolla

Chrysocolla is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Chrysoprase

Chrysoprase is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Citrine

Citrine is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Clear Quartz

Clear Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Colourless / Clear, White
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Clinozoisite

Clinozoisite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Copper Turquoise

Copper Turquoise is a Blue, Green phosphate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6 Mohs Blue, Cyan / Blue-Green
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Crazy Lace Agate

Crazy Lace Agate is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Cymophane

Cymophane is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Dalmatian Jasper

Dalmatian Jasper is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Danburite

Danburite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Demantoid

Demantoid is a Red, Green silicate (garnet) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Burgundy
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Dendritic Agate

Dendritic Agate is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Dioptase

Dioptase is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Dravite

Dravite is a Green, Pink cyclosilicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green, Pink
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Elbaite

Elbaite is a Green, Pink cyclosilicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green, Pink
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Epidote

Epidote is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Euclase

Euclase is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Fire Agate

Fire Agate is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Orange, Yellow
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Fire Chalcedony

Fire Chalcedony is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Orange, Yellow
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Fire Quartz

Fire Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Orange, Yellow
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Fluorite

Fluorite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Galaxy Stone

Galaxy Stone is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Garden Quartz

Garden Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Garnet

Garnet is a Red, Green silicate (garnet) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Burgundy
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Ghost Quartz

Ghost Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Golden Healer Quartz

Golden Healer Quartz is a Gold silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Gold, Yellow
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Green Apatite

Green Apatite is a Green silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green
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Green Chalcedony

Green Chalcedony is a Green silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green
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Green Jade

Green Jade is a Green silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green
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Green Jasper

Green Jasper is a Green silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green
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Green Quartz

Green Quartz is a Green silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green
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Green Tourmaline

Green Tourmaline is a Green cyclosilicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green
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Grey Chalcedony

Grey Chalcedony is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Grey, Yellow
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Grossular

Grossular is a Red, Green silicate (garnet) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Burgundy
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Harlequin Quartz

Harlequin Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Hawk's Eye

Hawk's Eye is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Hematite

Hematite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Hessonite

Hessonite is a Red, Green silicate (garnet) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Burgundy
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Hiddenite

Hiddenite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Honey Calcite

Honey Calcite is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Gold, Honey
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Hydro Quartz

Hydro Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Ice Quartz

Ice Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Iceland Spar

Iceland Spar is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Imperial Jade

Imperial Jade is a Green, White silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, White
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Indicolite

Indicolite is a Green, Pink cyclosilicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green, Pink
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Iolite

Iolite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Jade

Jade is a Green, White silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, White
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Jadeite

Jadeite is a Green, White silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, White
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Jasper

Jasper is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Kambaba Jasper

Kambaba Jasper is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Kunzite

Kunzite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Kyanite

Kyanite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Labradorite

Labradorite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Laguna Agate

Laguna Agate is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Lapis Lazuli

Lapis Lazuli is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Larimar

Larimar is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Aqua, Blue
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Lava Stone

Lava Stone is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Lazurite

Lazurite is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Lemon Quartz

Lemon Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Lemurian Quartz

Lemurian Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Libyan Desert Glass

Libyan Desert Glass is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Liddicoatite

Liddicoatite is a Green, Pink cyclosilicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green, Pink
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Mahogany Obsidian

Mahogany Obsidian is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Melanite

Melanite is a Red, Green silicate (garnet) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Burgundy
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Meteorite Stone

Meteorite Stone is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Mettle Stone

Mettle Stone is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Moldavite

Moldavite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Moonstone

Moonstone is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Moss Agate

Moss Agate is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Moss Chalcedony

Moss Chalcedony is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Mutton Fat Jade

Mutton Fat Jade is a Green, White silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, White
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Nephrite

Nephrite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Nigrine

Nigrine is a Green, Pink cyclosilicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green, Pink
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Obsidian

Obsidian is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Ocean Agate

Ocean Agate is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Ocean Jasper

Ocean Jasper is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Ocean Jasperite

Ocean Jasperite is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Ocean Reef

Ocean Reef is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Olivine

Olivine is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Onyx

Onyx is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Orthoclase

Orthoclase is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Paraiba Tourmaline

Paraiba Tourmaline is a Green, Pink cyclosilicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Aqua, Blue
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Peridot

Peridot is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Petrified Wood

Petrified Wood is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Phantom Quartz

Phantom Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Phenakite

Phenakite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Phosphosiderite

Phosphosiderite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Picasso Jasper

Picasso Jasper is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Picture Jasper

Picture Jasper is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Pietersite

Pietersite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Pink Apatite

Pink Apatite is a Pink silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Pink
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Pink Chalcedony

Pink Chalcedony is a Pink silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Pink
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Pink Tourmaline

Pink Tourmaline is a Pink cyclosilicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Pink
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Prasiolite

Prasiolite is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Prehnite

Prehnite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Pyrite

Pyrite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Pyrope

Pyrope is a Red, Green silicate (garnet) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Burgundy
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Rainbow Moonstone

Rainbow Moonstone is a Multicolour silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Iridescent
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Raspberry Quartz

Raspberry Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Red Jasper

Red Jasper is a Red silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Red
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Rhodochrosite

Rhodochrosite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Rhodolite

Rhodolite is a Red, Green silicate (garnet) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Burgundy
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Rhodonite

Rhodonite is a Blue, Green phosphate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6 Mohs Blue, Green
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Rose Aura Quartz

Rose Aura Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Rose Quartz

Rose Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Rubellite

Rubellite is a Green, Pink cyclosilicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green, Pink
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Rutilated Quartz

Rutilated Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Sardonyx

Sardonyx is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Schorl

Schorl is a Green, Pink cyclosilicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green, Pink
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Selenite

Selenite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Seraphinite

Seraphinite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Serpentine

Serpentine is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Smithsonite

Smithsonite is a Blue, Green phosphate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6 Mohs Blue, Green
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Smoky Quartz

Smoky Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Snowflake Obsidian

Snowflake Obsidian is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Sodalite

Sodalite is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Spectrolite

Spectrolite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Spessartine

Spessartine is a Red, Green silicate (garnet) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Burgundy
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Sphalerite

Sphalerite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Spirit Quartz

Spirit Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Strawberry Quartz

Strawberry Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Sugilite

Sugilite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Sunrise Jasper

Sunrise Jasper is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Sunstone

Sunstone is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Taaffeite

Taaffeite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Tanzanite

Tanzanite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Blue, Green
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Tektite

Tektite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Thulite

Thulite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Tiger Iron

Tiger Iron is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Tiger's Eye

Tiger's Eye is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Titanite

Titanite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Tourmalinated Quartz

Tourmalinated Quartz is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Tourmaline

Tourmaline is a Green, Pink cyclosilicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green, Pink
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Tsavorite

Tsavorite is a Red, Green silicate (garnet) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Burgundy
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Tugtupite

Tugtupite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Turquoise

Turquoise is a Blue, Green phosphate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6 Mohs Blue, Cyan / Blue-Green
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Uvarovite

Uvarovite is a Red, Green silicate (garnet) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Burgundy
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Variscite

Variscite is a Blue, Green phosphate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6 Mohs Blue, Green
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Vesuvianite

Vesuvianite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Watermelon Tourmaline

Watermelon Tourmaline is a Green, Pink cyclosilicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Green, Pink
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Yellow Apatite

Yellow Apatite is a Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow
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Yellow Jasper

Yellow Jasper is a Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow
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Zebra Jasper

Zebra Jasper is a Purple, Yellow silicate (quartz) prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

7 Mohs Yellow, Purple
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Zircon

Zircon is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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Zoisite

Zoisite is a Green, Brown silicate prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.

6.5 Mohs Green, Brown
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