AN ART DECO OPAL, ONYX AND DIAMOND MOSAIC PENDANT

An Art Deco opal, onyx and diamond brooch, the oval panel with opal, onyx and hardstone mosaic depicting a maritime scene at sunset, within a delicately scalloped rose-cut diamond set border, all to a closed back setting, length approximately 3cm, width approximately 2cm ,circa 1920, gross weight 8.3 grams