A Superb Pair of Ruby and Diamond 'Red Butterflies' Earrings, by James W. Currens for Faidee. Photo Christie's Image Ltd 2012

Each designed as a cluster of oval-shaped rubies weighing approximately 5.05, 5.01, 2.11 and 2.03 carats and pear and marquise-cut diamonds weighing approximately from 2.59 to 1.01 carats, mounted in 18k white and yellow gold, 2.9 cm long, in black Faidee case. Signed and with maker's mark for James W. Currens. Estimate HK$18,000,000 - HK$28,000,000 (US$2,300,000-3,500,000)

Accompanied by report no. 12101077/1 and 2 dated 16 october 2012 from the Gübelin Gemmological Laboratory stating that the rubies weighing 5.05 to 2.03 carat are of Burma (MYANMAR) origin, with no indications of heating; also accompanied by an appendix stating that these gemstones possess a saturated red colour

Also accompanied by report no. 1147082008 dated 30 october 2012 from the Gemological Institute Of America stating that the natural rubies weighing 5.05 to 2.03 carat are of Burma (MYANMAR) origin, with no indications of heating and the colour appearance of this stone is described in the trade as "pigeon's blood"; also accompanied by a monograph and a letter stating that the rubies are wonderful examples of the classic pigeon's blood colour. the intensity of the red colour gives these gems a sensation that is a truly fitting subject for detailed documentation

EIght reports dated from 3 november 2010 to 27 june 2012 from the Gemological Institute Of America stating that the pear and marquise-shaped diamonds weighing from 2.59 to 1.01 carat range from d to e colour, vvs1 to vs1 clarity

Accompanied by a certificate of authenticity from Faidee (2)

Christie's. Hong Kong Magnificent Jewels. 27 November 2012. Hong Kong