An early 20th century synthetic ruby and diamond bar brooch

An early 20th century synthetic ruby and diamond bar brooch, set in platinum and gold, a synthetic ruby and diamond cluster ring, set in platinum and gold, an emerald and diamond cluster ring, a garnet and diamond half-hoop ring, a citrine and diamond ring, a citrine mounted gold bar brooch, a sapphire and diamond circular brooch, a pierced gold ring set with emeralds, a tiger's eye ring and various other items of jewellery