YEARS 1910 SAPPHIRE AND DIAMOND RING A cushion sapphire set in a frame of old-cut diamonds. Set in platinum. Gross weight: 3.26 g. Finger size: 50. Dimensions of the sapphire: 8.75 x 8.47 x 4.07 mm. Weight of the sapphire: approx. 2.50 to 3 carats. A sapphire, diamond and platinum ring, circa 1910. Gross weight : 3,26 gr. Size : 50. Sapphire dimensions : 8,75 x 8,47 x 4,07 mm. Sapphire weight : 2,50 to 3 carats approx.