YAG Blue Sapphire Imitation Round Checkerboard

Just 3 Stunning Stones: 14,12 and 10mm.
YAG - Yttrium Aluminum Garnet. Very good Kashmir Blue Sapphire imitation, darker vivid blue hue with SubAdamantine Luster. Stones have perfect AAA cut quality
Produced in RF only in late 90-s by the Horizontal Directional Crystallization method