Solid Lightning Ridge Natural Opal Ring Size US 6.75 7B1:Faint B2:Dull B3:Bright B4:Very Bright

7B1:Faint    B2:Dull    B3:Bright    B4:Very Bright    B5:BrilliantBody Tone N1-N9 : N\5 Dark OpalN1-N4:Black Opal    N5-N6:Dark Opal    N7-N9:Light OpalTreatment : NONEOrigin : Lightning Ridge Opal Field

42 mm x 18

Color : Green BlueShape : PearCut : Medium Dome CabochonClarity : OpaqueBrightness B1 - B5 : B3

7 mm)Britain/Australia MAsia 12Euro 52

Solid Lightning Ridge Natural Opal Ring Size US 6.75 7B1:Faint B2:Dull B3:Bright B4:Very BrightAustralian Solid Natural Opal 10k Gold Ring. Opal Type : Australian Solid Dark OpalCarat Weight : 1. 10 ctSize : 6. 30 mm x 7. 80 mm approxColor : Multi ColorShape : OvalCut : Medium Dome CabochonClarity : TranslucentBrightness B1 B5 : B3. 6B1: 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