An emerald and diamond necklace, Bulgari. Photo courtesy Bonhams

composed of 104 graduated emerald beads, measuring approximately 19.6-19.2 x 13.9mm. to 7.2-7.0 x 5.1mm., accentuated by round brilliant-cut diamond rondels, completed by a round brilliant-cut diamond boule clasp;signed Bulgari, no. C3353, with signed box; estimated total diamond weight: 14.00 carats; gross weight approximately: 241.0 grams; length: 19in. Estimate: US$ 200,000 - 300,000 (€160,000 - 230,000)

Accompanied by AGL report # CS 53322, dated 14 February, 2013, stating that an excess of 50% of the emeralds tested at random are of Zambian origin, with moderate to strong evidence of clarity enhancement.