Australian Solid Black Crystal Opal 10k Gold Ring.
Opal Type : Australian Solid Black Crystal Opal
Carat Weight : 0.90 ct
Size : 5.42 mm x 9.11 mm approx
Color : Green Blue
Shape : Oval
Cut : Medium Dome Cabochon
Clarity : Translucent
Brightness B1 - B5 : B3.6
B1:Faint B2:Dull B3:Bright B4:Very Bright B5:Brilliant
Body Tone N1-N9 : N4 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 : 1.44 grams
Metal Type : Gold
Metal Purity : 10k
Ring Size :
US-6.5 (16.9 mm)
Britain/Australia M1/2
Asia 13
Euro 52.5