18ct bi-colour gold, emerald and diamond ring, Gianmaria Buccellati, the wide band centring a collet-set octagonal-cut emerald, between continuous open work foliate motifs partially embellished with brilliant-cut diamonds, flanked by a similarly set textured border between a bead work divider, size L1/2, indistinctly signed Gianmaria Buccellati.