Lightning Ridge Solid Opal Sterling Silver Ring Ring size:US 5.75 6B1:Faint B2:Dull B3:Bright B4:Very Bright

6B1:Faint    B2:Dull    B3:Bright    B4:Very Bright    B5:BrilliantBody Tone N1-N9 : N8 Light OpalN1-N4:Black Opal    N5-N6:Dark Opal    N7-N9:Light OpalTreatment : No EnhancedOrigin : Coober Pedy Opal Field

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

Australian Solid Dark Opal 10k Gold Ring

5 mm)Britain/Australia L1/2Asia 11Euro 51

Lightning Ridge Solid Opal Sterling Silver Ring Ring size:US 5.75 6B1:Faint B2:Dull B3:Bright B4:Very BrightOpal Type : Solid Australian Dark Opal Carat Weight : 0. 60 ct Size : 6. 44 mm x 8. 03 mm approx. Color : Multi Color Shape : Pear Cut : Low Dome Cabochon Clarity : Translucent Brightness B1 B5 : B3. 6 B1: Faint B2: Dull B3: Bright B4: Very Bright B5: Brilliant Body Tone N1 N9 : N6 Dark Opal N1 N4: Black Opal N5 N6: Dark Opal N7 N9: Light Opal Treatment : No Enhanced Origin : Lightning Ridge Opal Field, NSW Australia. Total Item Weight: 3. 85 g Metal