Pietra tagliata - Zaffiro blu acciaio Montana Czochralski (tirato) coltivato in laboratorio, taglio cuscino 13x9mm 7.47ct

Lab-created Sapphire 
Growing method: Czochralski
Czochralski, or another name Pulled, process carries the same physical and chemical properties as natural sapphires.
Advantages of the Czochralski method: the method allows to grow a bigger size and better clarity crystals that rarely can be found in nature. Comparing to flame fusion method, crystals grown by Czochralski method almost don't have air bubbles.

Color: Steel Blue Montana color
Clarity: slightly included
Cutting Quality: very good
Shape: Cushion
Size: 13x9mm height 6.1-6.7mm
Weight: 7.47ct

For wholesale, please send request with desired quantity and size