Ring in 850 thousandth platinum and 750 thousandth white gold, set with an oval-cut synthetic sapphire weighing approx. 1.55 ct in a surround of eighteen rose-cut diamonds. Circa 1910. Master goldsmith's hallmark JB marteau. Sapphire size: 8.7 x 6.1 x 3.8 mm Finger size: 54 Gross weight: 2.5 g
Timed Wednesday 10 September 2025・18:00 (Europe/Paris)
Lot no. 89

Ring in 850 thousandth platinum and 750 thousandth white gold, set with an oval-cut synthetic sapphire weighing approx. 1.55 ct in a surround of eighteen rose-cut diamonds. Circa 1910. Master goldsmith's hallmark JB marteau. Sapphire size: 8.7 x 6.1 x 3.8 mm Finger size: 54 Gross weight: 2.5 g

Estimate
€200 - €400
Result
€250
Buyer's premium
27%
Ring in 850 thousandth platinum and 750 thousandth white gold, set with an oval-cut synthetic sapphire weighing approx. 1.55 ct in a surround of eighteen rose-cut diamonds. Circa 1910. Master goldsmith's hallmark JB marteau. Sapphire size: 8.7 x 6.1 x 3.8 mm Finger size: 54 Gross weight: 2.5 g
Sale
Jewelry & Fashion Online
Wednesday 10 September 2025・18:00 (Europe/Paris)
Sale location coming soon 1 ter, boulevard de la République 92210 Saint-Cloud