LARGE RING In platinum, centred on a round-shaped amethyst weighing approximately 14 cts, the basket underlined by a fine ribbon of baguette-cut diamonds and a spray of navette-cut diamonds. A diamond and platinum ring set with a round shaped amethyst weighing approximately 14 cts. RC : Stone dimensions: 16.0 - 15.9 x 10.2 mm approx. TDD: 52; US: 6 (changeable). Gross weight: 19.2 g (Pt - 950).