Natural Opal (aus) 6.69CTS-78754

Weight(ct.) : 6.69
Weight(grm.): 1.33
Ratti in Stone: 7.35
Ratti in Gold : 11.02
Shape: Oval/Cabochon
Measurement(in mm): 19.27 X 13.25 X 4.05mm
Refraction Index: 1.45 (Spot)
Colour: WHITE
Group: OPAL
Treatments: Natural