6 septembre 2015
A sapphire and diamond ring, French
An 11.88 carats Burmese sapphire and diamond ring, French. Estimate £60,000 - 80,000 ( €82,000 - 110,000) . Photo: Bonhams. The cushion-shaped sapphire, weighing 11.88 carats, within a tiered mount composed of brilliant-cut diamonds, with marquise-cut...