YOUR GUIDE TO RARE BEAUTY

Discover the Beauty of

Tanzanite

Explore the history, properties, and value of one of the world's most remarkable gemstones.

Discovered in Tanzania in the 1960s, tanzanite quickly became one of the most coveted gems for its rare, rich blue-violet tones.

Tanzania (near Mount Kilimanjaro)

Chemical Formula

CaCO₃ (Calcium Carbonate)

Luster

Vitreous (Glassy)

Refractive Index

1.69

Specific Gravity

3.35

Crystal System

Orthorhombic

Hardness

Currently priced at

$400+

a Carat

Gemstones and minerals are classified into seven primary crystal systems based on their atomic structure.

The refractive index (RI) of a material measure how much light is bent, or refracted, when entering the material from another medium.

The specific gravity (SG) of a substance is a measure of its density compared to water.

A chemical formula shows the types and quantities of atoms in a molecule.