18ct white gold, emerald and diamond necklace, of cluster design, centring a claw-set cushion-shaped emerald stated to weigh 3.23 carats, framed by a line of brilliant-cut diamonds alternating between trilliant-cut diamonds, decorated to the reverse with pave-set diamonds, surmounted by a similarly set bale, the diamonds together stated to weigh 1.23 carats, supported from a trace chain necklace, circumference approximately 450 mm. Accompanied by a C. Dunaigre report numbered Cdc 1511450, dated 21 November 2015, stating that the 3.23 carat emerald is vivid green, natural and of Colombian origin.