750 thousandths white gold, 850 thousandths platinum clip brooch featuring an openwork knot, centered with a Tahitian pearl and studded with seventeen modern brilliant-cut diamonds, double-pin clasp. Numbered 515. Circa 1960. French M.O.: flèche L (partial). Pearl diameter: 14.5 mm Estimated total diamond weight: 0.75 ct Height : 6 cm - Width : 3 cm Gross weight : 18,3 g