ART DECO RING In platinum, set with a cushion ruby weighing approximately 3 cts and set with small diamonds. Circa 1925. A diamond and platinum ring set with a cushion-shaped ruby weighing approximately 3 cts. Circa 1925. L.F.G. certificate stating: Mozambique origin, "Intense purplish red" colour, no heat modification. RC : Stone dimensions: 8.5 x 8.0 x 4.6 mm approx. TDD: 53; US: 6 1/2 (changeable). Gross weight: 6.6 g (Pt - 950).