1.78 ct Dark Crystal Opal

Opal type: Semi-black crystal opal
Colors: Semi-translucent, green, blue, gold
Weight: 1.78 carats
Dimensions: 13.60 x 7.55 x 2.80 mm
Shape: Elongated rectangular oval
Cut: Cabochon
Body tone: N4/N5
Treatment: None
Origin: Lightning Ridge, Australia
 
Gemstone enhancement disclosure information:
All gemstones are natural and untreated (N), unless otherwise indicated.
N - Natural/Untreated • ASSBL - Assembled