The Federated International GemLab SA in association with the International Colored Gemstone Association now recognises Gold Sheen Sapphire as a unique variety of corundum.
Six certificates were issued by the FIG Bangkok office on 20th November.





The Federated International GemLab SA in association with the International Colored Gemstone Association now recognises Gold Sheen Sapphire as a unique variety of corundum.
Six certificates were issued by the FIG Bangkok office on 20th November.