Bidspirit auction | Platinum 2.28ct Black Opal and

Platinum 2.28ct Black Opal and 0.60ctw Diamond Halo Ring Size 6.5 - This platinum cocktail ring features a central oval cabochon-cut black opal weighing 8.22 carats. The opal displays a rolling flash play-of-color with dominant indigo, cobalt blue, and emerald green hues. A halo of round brilliant-cut diamonds surrounds the center stone, complemented by vertical rows of three baguette-cut diamonds on each shoulder. The open-work gallery and band are composed of 900-grade platinum, with the interior shank bearing the impressed marks Pt900, the gemstone weight 2.28 for the opal, and 0.60 Ring size: US 6.5. 6.3 grams.