A gem-set and enamelled pendant, early 20th centuryOf open, stylised geometric design, channel set with calibré-cut rubies, also with old round brilliant-cut diamonds and graduated baroque pearls, to an opalescent shaded enamel ground, all suspended from fine belcher links, with bolt-ring clasp and additional later clasp, length from clasp to tip of central drop approximately 29cm, stamped '18CT', accompanied by fitted case, pearls untested