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Organic Gemstones

Pearl

Current Market Range

$300 - $1,000+ per strand

History

Revered as symbols of purity; revolutionized by cultured pearls.

Country of Origin

China, Japan, Australia, Tahiti

Color(s)

White, cream, pink, silver, black, golden
Chemical Formula
Al₂O₃ (Aluminum Oxide with chromium impurities)
Hardness
2.5
Luster
Pearly
Crystal System
Refractive Index
1.53
Specific Gravity
2.6

Help Guide

Crystal System
Gemstones and minerals are classified into seven primary crystal systems based on their atomic structure.
Refractive Index
The refractive index (RI) of a material measure how much light is bent, or refracted, when entering the material from another medium.
Specific Gravity
The specific gravity (SG) of a substance is a measure of its density compared to water.
Chemical Formula
A chemical formula shows the types and quantities of atoms in a molecule.

Organic Gemstones