Floating Point Color Change Sapphire Oval

Published January 8, 2021 52 Views

Rumble Laboratory created (True, Cultured) Floating Point (Floating Zone, Horizontal Directional Crystallization or Bagdasarov Method) Color Change Sapphire. Stones change color from very light blue in daylight to light pink in incandescent light and have the exceptional vitreous adamantine luster; perfect AAA cut quality

Chemical composition AI2O3
R.I. = 1.766 - 1.774
Specific gravity: 3.97 - 4.05
Mohs Hardness 9
Crystal system: Hexagonal
Very few 8x6m stones only