Natural Lightning Ridge Solid Opal Sterling Silver Ring

Opal Type : Australian Solid Light OpalCarat Weight : 0.70 ctSize : 8.00 mm x 8.00 mm approx.Color : Green Blue OrangeShape : RoundCut : Low Dome CabochonClarity : OpaqueBrightness B1 - B5 : B3.6B1:Faint  B2:Dull  B3:Bright  B4:Very  Bright  B5:BrilliantBody Tone N1-N9 : N7 Light OpalN1-N4:Black Opal  N5-N6:Dark Opal  N7-N9:Light OpalTreatment : NONEOrigin : Lightning Ridge Opal Field, NSW Australia ---------------------------------------------------Total Item Weight : 2.80 gMetal Type : SilverMetal Purity : 92.5 Sterling Ring Size :US 6.25 (16.7 mm) Britain/Australia MAsia 12Euro 52