Pair of VAN CLEEF & ARPELS earrings in yellow gold, diamonds, ebony and rock crystal

Superb pair of VAN CLEEF & ARPELS earrings composed of a yellow gold clip paved with brilliant-cut diamonds holding an interchangeable drop ring, a pair in ebony and a pair in rock crystal. French work, circa 1960. Signed Van Cleef & Arpels, numbered. Maker's mark: Pery et Fils. Information regarding the stones: Total weight of diamonds = 26 diamonds for approximately 1.2 carats. Estimated color: F/G - Estimated purity: VVS2. Dimensions: Clip width: 1 cm. Clip length: 1.8 cm. Total length with ring: 4 cm. Ring diameter: 2.8 cm. Gross weight: 15.65 gr.