RING In platinum and white gold, set on yellow gold claws with an oval-shaped ruby weighing 5.11 cts and navette diamonds. A diamond, platinum and 18k gold ring set with an oval shaped ruby weighing 5,11 cts. S.S.E.F. certificate attesting for the ruby: origin Burma (Myanmar), natural colour (natural), no heat modification (no heat). RC : Chips. Partially legible hallmark: Société M, ? , P (?). Stone dimensions: 1.00 x 8.85 x 5.74 mm. TDD: 50 - 51; US: 5 1/2 - 5 3/4 (subject to change). Gross weight: 5.4 g (Pt - 950 and 18k - 750).