Gemstone profile and identification guide
South Sea Pearl
South Sea Pearl is a White, Cream organic prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.
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Overview
South Sea Pearl is a White, Cream organic prized for its distinctive beauty, historic appeal, and use in fine jewellery and collector pieces.
Use this profile as a collector reference and educational guide for quick on-page comparison, then validate with the interactive identification system.
Identification
Name: South Sea Pearl
Scientific classification: Organic
Hardness: 2.5 Mohs
Transparency: opaque
Lustre: pearlescent
Crystal system: Nacreous
Primary colour: Green
Secondary colour: Sea Green
Colour family: Greens
Physical Properties
Hardness category: soft
Hardness value: 2.5 Mohs
Chemical composition: Calcium carbonate and conchiolin
Crystal system: Nacreous
Common locations: Japan, Australia, Tahiti, China
Learn more: Gem-A gemstone education resources.
Colour Variations
South Sea Pearl is classified within the greens palette. Primary colour: green. Secondary colour: sea green. Optical effects: Iridescence.
Optical effects: Iridescence
Formation
Forms inside mollusk shells as layers of nacre coating an irritant.
Origin
Japan, Australia, Tahiti, China
Uses
Best for: Soft jewellery, heirloom carvings, and delicate accessories.
Ideal uses: Gentle settings and occasional wear.
Care
Avoid acids and drying. Store separately and clean with a damp cloth.
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South Sea Pearl FAQ
How can I identify South Sea Pearl?
Compare hardness (2.5 Mohs), crystal system (Nacreous), colour profile, and lustre (pearlescent) with your sample. Then cross-check related gemstones listed above.
What colour range does South Sea Pearl appear in?
South Sea Pearl is classified within the greens palette. Primary colour: green. Secondary colour: sea green. Optical effects: Iridescence.
Where is South Sea Pearl commonly used?
Gentle settings and occasional wear.. For maintenance, follow the care guidance in this profile.
Scientific References
Reference data from GIA and Mindat mineral records.