Lightning Ridge Solid Natural Black Crystal Opal 10k Gold Ring.
Opal Type : Solid Australian Crystal Black OpalCarat Weight : 1.82 ct
Size : 10.25 mm x 13.75 mm approx
Color : Blue Green
Shape : Oval
Cut : Low Dome Cabochon
Clarity : Translucent
Brightness B1 - B5 : B3.6
B1:Faint B2:Dull B3:Bright B4:Very Bright B5:Brilliant
Body Tone N1-N9 : N3 Black Opal
N1-N4:Black Opal N5-N6:Dark Opal N7-N9:Light Opal
Treatment : NONE
Origin : Lightning Ridge Opal Field, NSW Australia.
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Total Item Weight : 2.81 g
Metal Type : Gold
Metal Purity : 10k
Ring Size :
US- 6.75 (17.1 mm)
Britain/Australia N
Asia 13.5
Euro 53