BULGARI: A GEM-SET AND DIAMOND 'ALLEGRA' NECKLACE Set with a series of vari-cut gemstones, including peridot, pink tourmaline, citrine and blue topaz, accented by brilliant-cut diamond links, on a cable-link chain with a circular citrine cabochon and white gold polished bead terminals, mounted in 18K gold, signed Bvlgari, Italian registry mark, pendant length 5.6cm, chain length 44cm (adjustable)