18.95 ct very large luxury genuine natural swiss blue topaz gemstone

Product No: 2110top0003
Stone Type: Natural Topaz
Shape: Pear
Total weight: 18.95 carats
Size (mm): 19.8x12.8x10.3mm
Color: Swiss Blue
Clarity: IF
Luster: Very Good
Hardness: 8
Treatment: Heat
Origin: Brazil