18ct gold, diamond, pearl and gem-set 'Allegra' necklace, Bulgari the collar designed as a series of variously-shaped multi-coloured gemstones, including citrine, amethyst, tanzanite, rubellite, blue topaz and green tourmaline alternating between concave baton-shaped spacers pave-set with brilliant-cut diamonds, supporting to the front a five row cascading fringe of similarly set spacers, rows of gemstones and cultured pearls, the diamonds together weighing approximately 4.00 carats, inner circumference approximately 370 mm, signed Bvlgari.