YEARS 1920 MARGUERITE SAPPHIRE RING Centred on an oval sapphire set in brilliant-cut diamonds. Set in platinum. French work. Gross weight: 5.18 g (sapphire is rubbed off) Finger size: 56. Sapphire dimensions: 11.03 x 7.70 x 4.82 mm approx. Sapphire weight: approx. 3 to 3.50 carats. A sapphire, diamond and platinum ring, circa 1920. French assay mark. Gross weight : 5,18 gr. (chiped sapphire) Size : 56. Sapphire dimensions : 11,03 x 7,70 x 4,82 mm approx. Sapphire weight : 3 to 3,50 carats approx.