Beautiful oval natural black opal gemstone

Product No: 2310opa0003
Stone Type: Natural Opal
Shape: Oval
Total Weight: 0.61 Carat
Size (mm): 6.8x5x2.1mm
Color: See picture
Clarity: PK
Luster: Very Good
Hardness: 5.5-6
Treatment: Doublet
Origin: Australia