4.22 ct unusual pear shaped natural blue star sapphire

Product No: 2010sap0007
Stone Type: Natural Sapphire
Shape: Pear
Total weight: 4.22 carats
Size (mm): 12.8x8x4.3mm
Color: Blue
Clarity: PK
Star Effect: Very Good
Hardness: 9
Treatment: Diffusion
Origin: Thailand