4.07 ct large unique natural black opal gemstone

Product No: 1707opa0012
Stone Type: Natural Opal
Shape: Oval
Total weight: 4.07 carats
Size (mm): 14x10.1x3.8mm
Color: Rainbow See Image
Clarity: PK
Luster: Very Good
Hardness: 5.5-6
Treatment: Heat
Origin: Australia