An emerald and diamond-set necklace, of brushed gold design, composed of a series of twisted openwork triangular links, centring a knotted plaque terminating with a drop-shaped emerald collet, the front of the necklace accented by six brilliant-cut diamond collets, signed Fibula, emerald weighs approximately 0.50 carat, mounted in 18 carat yellow gold, length 41.6 cm, gross weight 39.7 grams