A sapphire, ruby and diamond fringe necklace, by Bulgari

Lot 84. A Ceylon sapphire, ruby and diamond fringe necklace, by Bulgari. Estimate USD 180,000 - USD 250,000. Price realised USD 212,500. © Christie’s Images Limited 2018.
Set at the front with oval-cut sapphire and diamond clusters interspersed by circular cabochon rubies and diamond trefoils, suspending oval-cut sapphire and circular-cut diamond fringe, to the circular-cut diamond and cabochon ruby necklace, 16 1/4 ins., mounted in 18k gold, in a Bulgari blue leather case. Signed Bulgari.
Accompanied by report no. 1090921 dated 12 March 2018 from the AGL American Gemological Laboratories stating that it is the opinion of the Laboratory that the origin of the sapphires would be classified as Ceylon (Sri Lanka), with standard heat enhancement.
Literature: Cf. M. Chapman, A. Triossi, The Art of BVLGARI, La Dolce Vita and Beyond 1950-1990, Fine Arts Museums of San Francisco, Delmonico Books - Prestel, 2013, p. 38
Christie's. Magnificent Jewels, New York, 17 April 2018