MAUBOUSSIN "Nadia". Ring in yellow gold 750 thousandths, set with a cabochon-cut pink tourmaline approx. 3.70 ct, shouldered by two pieces of gadrooned gray mother-of-pearl. Signed and numbered 47443. Circa 1980. Tourmaline size: 10.4 x 8.1 x 5.1 mm Finger: 48 (tightening bridge) - Gross weight: 11.4 g Accompanied by a presentation case.