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Product Description

This is a synthetic silica doped with rare-earth elements such as  Praseodymium (Pr) and Dysprosium (Dy) which was originally intended for industrial laser technology and has been marketed under the name 'Toumalike' in the gem trade.
The distinct colour-change ranges from purple-blue in daylight and fluorescent to pinkish-lilac in incandescent light.
There are no visible inclusions.

weight:  7.58 carats.
shape:  Round brilliant cut
dimensions:  12.25mm round x 9.15mm deep
 

Specifications

Product Code
SYNT10
Weight
0.025kg

Customer Reviews

Colour-change blue-violet 'Tourmalike plus', faceted. 7.58 carats.

Item in Stock (1 Available)

Product Code SYNT10