Durability range

Hardness 4-5.5 (Medium)

Explore medium hardness gemstones (4-5.5 Mohs) ideal for occasional wear. Browse tourmaline, garnet, and other beautiful moderate-hardness stones.

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About Hardness 4-5.5 (Medium)

Moderately durable gemstones suitable for occasional wear jewellery.

Hardness Scale: Mohs 4-5.5

Number of gemstones: 11

Aegean Opal

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

5.5 Mohs Multicolour
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Black Opal

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

5.5 Mohs Black
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Boulder Opal

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

5.5 Mohs Multicolour
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Crystal Opal

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

5.5 Mohs Multicolour
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Ethiopian Opal

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

5.5 Mohs Multicolour
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Harlequin Opal

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

5.5 Mohs Multicolour
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Mexican Opal

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

5.5 Mohs Multicolour
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Opal

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

5.5 Mohs Multicolour
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Peruvian Blue Opal

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

5.5 Mohs Blue
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Pinfire Opal

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

5.5 Mohs Orange, Red
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White Opal

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

5.5 Mohs White
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