By Aurélien Delaunay
Since 2004, treating corundum (primarily rubies) by filling fractures with lead glass has continued to develop.
Gems & Gemology, Vol 47, n°2, Summer 2011
G & G January 10, 2013 Volume 4, No. 4
Those who frequently travel to gem deposits to buy rough stones quickly come to understand that a sword of Damocles hangs over them…
The French Gemmology Laboratory recently had the opportunity to analyse an exceptional jewel.
The French Gemmology Laboratory has been equipped with a latest-generation DiamondView since 2006.
In Color, All about Colored Gemstones, Summer 2013, n° 23