Australian Solid Black Opal 10k Gold and Sterling Silver Ring.
Opal Type : Solid Australian Black Crystal Opal
Carat Weight : 2.85 ct
Size : 10.26 mm x 13.55 mm approx.
Shape : Fancy
Color : Purple Blue
Cut : Medium Dome Cabochon
Clarity : Translucent
Brightness B1 - B5 : B3.5
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 : 3.69 g
Metal Type :
92.5 Sterling Silver (Ring Shank)
10k Gold ( Bezel only)
Ring Size :
US-6.5 (16.9 mm)
Britain/Australia M1/2
Asia 13
Euro 52.5