A diamond and hardstone ring, by Van Cleef & Arpels, and a pair of diamond and chrysoprase earrings

A diamond and hardstone ring, by Van Cleef & Arpels, and a pair of diamond and chrysoprase earrings
The ring composed of twin diamond lines with interchangeable curved onyx or chrysoprase panel central band, finger size J1/2; the similarly designed earrings with curved chyrsoprase panel centre to diamond line borders, clip and post fittings
Ring and both bands signed VCA, ring © 88 and no. B 5606 A 147, bands no. X 85 and C 73 respectively (4)