0.64 ct top quality emerald cut natural loose London blue topaz gemstone

Product No: 2310top0056
Stone Type: Natural Topaz
Shape: Emerald
Total Weight: 0.64 carat
Size (mm): 6.1x4.1x2.7 mm
Color: London Blue
Clarity: IF
Luster: Very Good
Hardness: 8
Treatment: Heat
Origin: Brazil