Bidspirit auction | Antique Red Coral Cabochon and

Antique Red Coral Cabochon and Diamond Platinum Ring - This platinum ring features a central barrel-shaped antique red coral cabochon. The central stone is set within a bridge-style mounting that includes a decorative open-work under-gallery. The coral is flanked by two round brilliant-cut colorless diamonds. The interior of the ring shank is stamped with the characters Pt900, indicating a 90 percent platinum composition, and 0.13, identifying the total diamond carat weight. Central stone: 9.1mm x 7.0mm Total diamond weight: 0.13 carats Total weight: 5.1 grams.