Lightning Ridge Solid Opal Sterling Silver Ring.
Opal Type : Australian Solid Dark Opal
Carat Weight : 0.83 ct
Size : 4.38 mm x 10.07 mm approx.
Color : Green Blue
Shape : Marquise
Cut : Low Dome Cabochon
Clarity : Opaque
Brightness B1 - B5 : B3.5
B1:Faint B2:Dull B3:Bright B4:Very Bright B5:Brilliant
Body Tone N1-N9 : N5 Dark Opal
N1-N4:Black Opal N5-N6:Dark Opal N7-N9:Light Opal

Treatment : No Enhanced
Origin : Lightning Ridge Opal Field, NSW Australia.
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Total Item Weight : 4.94 Grams
Metal Type : Silver
Metal Purity : 92.5 Sterling
Ring Size :
US 9.75 (19.6 mm)
Britain/Australia T
Asia 19.5
Euro 61