X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

Frequently Asked Questions (FAQ) / Difference Sapphire - Tanzanite

What is the difference between sapphire and tanzanite?

Among the most popular gems in the market, loose sapphire and tanzanite could not be more different. Sapphire is corundum, with a hardness of 9 on the Mohs scale. It occurs in blue, but also in yellow, pink, purple, orange, black, colorless and green. Most sapphire is heat-treated, but unheated specimens can be found. Tanzanite, on the other hand, is a form of zoisite, with a Mohs hardness of 6.5 to 7. Tanzanite colors include purple and blue. The color of most gems is medium to deep violet-blue. Tanzanite is often enhanced by heat treatment to eliminate brownish-yellow tints.

Return to FAQ HOME

STAY IN TOUCH | NEWSLETTER
*You're signing up to receive GemSelect promotional email.
Partners and Trust Partners and Trust Payment options Payment options

Switch to Mobile Version

Copyright © 2005-2024 GemSelect.com all rights reserved.

Reproduction (text or graphics) without the express written consent of GemSelect.com (SETT Company Ltd.) is strictly prohibited.

844

Enlarged Gemstone Image