Lightning Ridge Solid Opal Sterling Ring

Australian Natural Solid Opal Sterling Silver Ring. Opal Type : Solid Australian Dark OpalCarat Weight : 1.61 ctSize : 11.30 mm x 12.50 mm approx.Color : Multi-ColorShape : Free ShapeCut : Low Dome CabochonClarity : TranslucentBrightness B1 - B5 : B3.7B1:Faint    B2 :Dull    B3:Bright    B4:Very Bright    B5:BrilliantBody Tone N1-N9 : N5 Dark OpalN1-N4:Black Opal    N5-N6:Dark Opal    N7-N9:Light OpalTreatment : NONEOrigin : Lightning Ridge Opal Field, NSW Australia--------------------------------------------------------------------------------------------Total Item Weight : 3.60 gramsMetal Type : SilverMetal Purity : 92.5Ring Size :US-7.5 (17.7 mm)Britain/Australia O1/2Asia 15Euro 55.5