8.18 ct large unique genuine natural boulder opal gemstone

Product No: 2110opa0004
Stone Type: Natural Opal
Shape: Oval
Total Weight: 8.18 Carats
Size (mm): 13x12.6x6.2mm
Color: See picture
Clarity: PK
Luster: Very Good
Hardness: 5.5-6
Treatment: Natural/Untreated
Origin: Australia