950/1000 platinum ring set with a large emerald-cut yellow sapphire weighing approximately 18.80 carats, set with 4 baguette-cut diamonds weighing approximately 0.15 carat each. Estimated quality of the sapphire: probably unheated, pale yellow. Dimensions: approx. 15.5 x 12.7 x 10 mm. TDD. : 55. Gross weight : 9,3 g.