Bidspirit auction | 18 Karat Yellow Gold Sapphire

18 Karat Yellow Gold Sapphire and Diamond Navette Ring - An 18 karat yellow gold navette-style cluster ring. The marquise-shaped head features three graduated blue stones, comprising a central oval-cut sapphire flanked by two smaller round-cut sapphires. The central gems are bordered by milgrain detailing and a halo of twelve round-cut diamonds. Each shoulder is designed with a ribbed, stepped mount set with two additional small round-cut diamonds. The interior of the shank displays British hallmarks including a crown symbol, the number 18 denoting 18 karat gold purity, and a leopard's head for the London Assay Office. The inner band also features a hand-engraved number 377. The ring is presented in a period-style hinged box with a snakeskin pattern exterior and a cream velvet-lined interior. Approximate weight: 2 grams.