18K (750) gold and platinum marquise ring, centered on a rounded old-cut diamond surrounded by pavé-cut old-cut diamonds, the shoulder set with 8/8 round diamonds. Early 20th century. Accompanied by its 1959 purchase invoice (Nardi, Venice). Dimensions of bezel: approx. 2.9x1.4cm. Dimensions of main diamond: approx. 6.3x5.7x4mm. Gross weight: 8.1g (bumps) An early 20th century diamonds ring