Marquise ring in yellow and white gold 750 thousandths, the oval bezel centered on a pear-cut ruby approx. 0.50 ct, in a setting of twenty old rose-cut and brilliant-cut diamonds (one reported). 19th century. Total estimated diamond weight: 2 ct Bezel size: 3.7 x 1.5 cm Finger: 55 - Gross weight: 8 g