A COLOURED DIAMOND SINGLE-STONE RING The cushion-shaped diamond, within a four-claw setting, to aAdam's Auctioneers4.3(13)€2,400Sep 15, 2026
1.85 CARAT ROUND BRILLIANT H VS1 DIAMOND 14 KARAT WHITE GOLD SEMI MOUNT RINGModern Jewelry4.5(218)$4,950Oct 18, 2026
A DIAMOND RING The frontispiece set with a row of rectangular-cut diamonds between brilliant-cutAdam's Auctioneers4.3(13)€1,500Sep 15, 2026