Bidspirit auction | Fantastic 5.31ct Opal & Diamond

Fantastic 5.31ct Opal & Diamond Ring in Platinum - Size 5 - Centered with a substantial 5.31ct oval cabochon opal of exceptional play-of-color, flashing vivid green, blue, red, and violet across a translucent body, flanked by 0.25ct of round brilliant diamonds in platinum (Pt850) with openwork gallery and split shoulders. Size 5, 8.2 grams. Marked 5.31, 0.25, Pt850 inside shank.