A ruby and diamond stickpin by Van Cleef & Arpels
A ruby and diamond stickpin by Van Cleef & Arpels, the oval plaque millegrain-set with tapered calibré-cut rubies and two square-shaped diamonds surrounding graduated rose-cut diamonds in silver and gold, signed to the pin and with French control marks, 1cm wide, 6.7cm high, in Van Cleef & Arpels case