6.71 ct huge completely unique genuine natural opal gemstone

Product No: 1810opa0003
Stone Type: Natural Opal
Shape: Oval
Total Weight: 6.71 Carats
Size (mm): 13.7x10.7x8.6mm
Color: See picture
Clarity: Semi Transparent
Luster: Very Good
Hardness: 5.5-6
Treatment: Natural/Untreated
Origin: Australia