Elegant tuxedo set in white gold (750) comprising a pair of cufflinks, two collar buttons and four frosted glass breastplate buttons of slightly concave round shape, centered on a small half-roll of black onyx held by a hoop of small rose-cut diamonds in pearl-grain setting on white gold. Circa 1925. In a red morocco and gold case, containing four metal button fasteners. Total gross weight: 13.5 g. Button diameters: 0.9 to 1.4 cm. Minor chips.