A black onyx and diamond dress set, of a rounded square design, with concaved onyx edged with an engine-turned platinum border, centred with diamond highlight in millgrain collet, including four shirt buttons, a pair of cufflinks and two collar studs, marked '18ct and PLAT', cased, total weight of items 18.4 grams.
Sold for £580
A black onyx and diamond dress set, of a rounded square design, with concaved onyx edged with an engine-turned platinum border, centred with diamond highlight in millgrain collet, including four shirt buttons, a pair of cufflinks and two collar studs, marked '18ct and PLAT', cased, total weight of items 18.4 grams.