Stunning stone, excellent service. Thankyou
|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
This is a natural stone that has been tumbled to a glossy finish and drilled
Mohs scale 6.5 to 7
Weight of stone 30.70 cts app
size of stone 19 x 14 x 13 mm app
Tanzanite is an extraordinary gemstone. It occurs in only one place worldwide -Tanzair africa. Its blue, surrounded by a fine hint of purple, is a wonderful colour. Thanks to its unusual aura and the help of the New York jeweller’s Tiffany, it has rapidly become one of the most coveted gemstones in the world.
Tanzanite is a blue variety of the gemstone zoisite. It consists of calcium aluminium silicate and is not particularly hard, having a value of 6.5 to 7 on the Mohs scale. For that reason, it should always be worn carefully and never placed in an ultrasonic bath for cleaning or brought into contact with acids.
The deep blue of the tanzanite is fantastic, and runs from ultramarine blue to light violet-blue. The most coveted colour is a blue surrounded by a delicate hint of purple, which has a particularly wonderful effect in sizes of over 10 carats. The well developed polychromaticity of the tanzanite is typical: depending on the angle from which you look at it, the stone may appear blue, purple or brownish-yellow
The Gemstone Sheriff program allows our members to request an audit on any auction, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.
|Starts||28th Jul 2014 10:16pm PDT|
|Express Shipping||$33.00||14 days|
|Registered Shipping||$12.00||21 days|
|Shipping Insurance all providers $7.00 (optional)|