Lightning Ridge Solid Opal Ring Size:Size US 6.75 8B1:Faint B2:Dull B3:Bright B4:Very Bright

8B1: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

5B1: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 Opal

88 gMetal Type : Sterling Silver Metal Purity : 92

57 gMetal Type : SilverMetal Purity : 92

Lightning Ridge Solid Opal Ring Size:Size US 6.75 8B1:Faint B2:Dull B3:Bright B4:Very BrightOpal Type : Australian Solid Light OpalCarat Weight : 1. 80 ct and 0. 50 ctSize : 7. 62 mm x 9. 45 mm approx. 5. 00 mm x 5. 00 mm approxColor : Green BlueShape : Oval, RoundCut : Medium Dome CabochonClarity : TranslucentBrightness B1 B5 : B3. 2 3. 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 : Origin : Lightning Ridge Opal Field,