0.68 ct very nice octagon cut natural loose London blue topaz

Product No: 2310top0029
Stone Type: Natural Topaz
Shape: Emerald
Total weight: 0.68 carat
Size (mm): 6.1x4x2.8mm
Colour: London Blue
Clarity: IF
Luster: Very Good
Hardness: 8
Treatment: Heat
Origin: Brazil