Burmese "pigeon's blood" 53.27 carats ruby and 16.70 carats diamond necklace. Photo Sotheby's

Composed of thirty-nine graduated oval rubies together weighing 53.27 carats, alternately-set with thirty-nine oval diamonds together weighing approximately 16.70 carats, mounted in 18 karat white and yellow gold,length approximately 390mm. Estimate 2,000,000 — 2,500,000 HKD. Lot 1604 sold 3,620,000 HKD

Accompanied by GRS report numbered 2008-073916, dated 28 July 2008, stating that the rubies are natural, of Burmese origin, Vivid Red colour (GRS style "pigeon's blood"), with no indication of thermal treatment.

Sotheby's. MAGNIFICENT JEWELS & JADEITE, Hong Kong,  07 Apr 2010