Ring in yellow and white gold 750 thousandths, set with a rectangular cabochon-cut yellow opal weighing approx. 6.50 ct, between two lines of eighteen modern brilliant-cut diamonds. M. O. (partial) : Sté. B. J. E. Opal size: 17.8 x 9.7 x 6.6 mm Total estimated diamond weight: 0.15 ct Finger size : 51 Gross weight : 6,4 g