SAPPHIRE CABOCHON COCKTAIL RING In the centre an oval sapphire cabochon framed by four brilliant-cut diamonds in claw chatons. Set in 18K yellow gold. Gross weight: 9.73 g. Finger size: 53. Dimensions of the sapphire: 16.72 x 15.51 x 7.17 cm. Weight of the sapphire: approximately 19 to 21 carats. GEM Paris opinion: Ceylon origin, unheated. A diamond, sapphire and 18K yellow gold ring. Gross weight : 9,73 gr. Size : 53. Sapphire dimensions : 16,72 x 15,51 x 7,17 cm. Sapphire weight : 19 to 21 carats approx. GEM Paris preliminary report, in his opinion : Ceylon origin, not heated.