Gem Type :Corundum
Stone shape : heart
Stone size: 6.5 X 6.2mm. depth is 3.75 mm.
Stone weight : 1.20CT
Color : deep intense royal blue color , color rating is 10/10 . The royal blue color is not comparable to Ceylon sapphire color which is usually lighter in tone , as this particular color is very deep blue.
Clarity : transparent to translucent , Eye clean.
Cut proportions : very good
Stone origin : Kanchantaburi mine - Thailand
Stone Treatment : Heat is a common treatment for natural sapphire .
The Royal Blue Color is rarely associated with transparency. Gem grade materials have usually a velvety appearance with a medium transparency to excellent translucency. The purer the blue color with less or no grayish, greenish or blackish overtone, the more valuable it is.