YEARS 1925 MAGNIFICENT RECTANGULAR SAPPHIRE RING The rectangular cut-side plate is centred on an oval sapphire in a surround of 8/8-cut diamonds, the corners enhanced with half-moon sapphires. Set in platinum. Gross weight: 5.21 g. Finger size: 55. Dimensions of the sapphire: approx. 9.05 x 7.57 x 6.18 mm. Weight of the sapphire: approx. 3 to 3.50 carats. Preliminary opinion of GEM Paris: Ceylon origin, no trace of heat treatment. A sapphire, diamond and platinum ring, circa 1925. Gross weight : 5,21 gr. Size : 55. Sapphire dimensions : 9,05 x 7,57 x 6,18 mm approx. Sapphire weight ; GEM Paris preliminary report, in their opinion : Ceylon origin, no trace of heat treatment.