Bidspirit auction | PT900 12.19 ct Cabochon Opal

PT900 12.19 ct Cabochon Opal Solitaire Ring, 5.75 - Metal : platinum (Pt900 hallmarked) Gross Weight : 14.1 g Center Stone : natural white opal cabochon, oval, ~20 × 15 mm, weight 12.19 ct, pastel body tone with broad flash play-of-color (green, orange, red) visible across crown Accent Stones : none (solitaire presentation) Setting / Design : open two-tier basket with vine-style claw prongs; split cathedral shoulders joining a half-round comfort shank Finger Size : 5.75 This substantial platinum solitaire ring centers an oversized cabochon opal exhibiting broad-flash play-of-color against a light body tone. The gem is secured in a high open basket with decorative vine-form prongs that allow maximum light encounter and easy inspection of the pavilion. Fabrication quality is consistent with cast platinum jewellery: smooth interior finish, heavy-duty shank, and firm prong seats suitable for a gemstone of this mass.