0.68 ct black opal, rare natural black opal gemstone

Product No: 2310opa0005
Stone Type: Natural Opal
Shape: Oval
Total Weight: 0.68 Carat
Size (mm): 7x5.2x2.1mm
Color: See picture
Clarity: PK
Luster: Very Good
Hardness: 5.5-6
Treatment: Doublet
Origin: Australia