gold hoop earrings with diamonds and exchangeable hoops

A pair of 18-karat yellow gold earrings featuring a curved, semicircular band that wraps around the ear, with two thin twisted gold bands on either side of 13 brilliant-cut diamonds of decreasing size. Attached to them are 4 pairs of smooth hoops consisting of special rings that gradually widen from narrow to wide, made of chrysoprase, lapis lazuli, onyx, and ivory, signed, dated and numbered: Van Cleef & Arpels, 1968, with French assay mark for gold and a French master mark, circa 1970.

gross weight: 50 g
dimensions: 3.8 x 2.8 mm
dimensions hoop: 2.8 cm
dimensions earrings: 1.5 cm