About Tanzanite
The blue to violet variety of zoisite. Colour, transparency and inclusions vary naturally, giving each specimen its own character.
Stone information
- Mineral or material: Zoisite
- Mohs hardness: 6–7
- Care: Clean with lukewarm water, mild soap and a soft brush or cloth. Avoid harsh chemicals, hard knocks and sudden heat; use ultrasonic or steam cleaning only after professional advice.
- Treatment note: Most blue-to-violet tanzanite is heated; this is generally stable and should be disclosed.
About the available specimen
This page represents loose, unmounted tanzanite. Natural colour, inclusions and pattern can vary from one stone to another. We will confirm the exact specimen photograph, carat weight, millimetre dimensions, cut, origin (when supportable), treatment disclosure, laboratory report, price and availability before purchase.
Image note: Gallery photographs are illustrative examples of this gemstone type, not the exact weighed stone offered for sale.
There are no reviews yet.