Jadeite, onyx and diamond brooch; composed of two carved green jadeite bi upon a base metal surmount, each measuring a diameter of approximately 26 mm, connected by a geometric platinum bow motif accented with cabochon onyx and rose-cut diamonds, with an 18ct white gold brooch pin, length 55 mm, width 26 mm, total gross weight approximately 12 grams.; accompanied by a Gemmological Certification Services report numbered 5777-9317, dated 20 March 2017, stating that the jadeite discs are A-jade, with no indications of impregnation.