29 avril 2014

A coloured diamond ring. Photo Christie's Image Ltd 2014. Centering upon a fancy dark orangy-brown oval-shaped diamond, weighing approximately 27.33 carats, to the pavé-set diamond and pink diamond double frame and triple shoulders, mounted in gold, ring size 6¼. Estimate CHF360,000 – CHF540,000 ($409,479 - $614,218) Accompanied by report no. 5141721505 dated 23 May 2012 from the GIA Gemological Institute of America stating that the diamond is Fancy Dark Orangy-Brown colour Please note that the pink diamonds have not been tested... [Lire la suite]

A ruby and diamond ring. Photo Christie's Image Ltd 2014. Set with an oval-shaped ruby, weighing approximately 19.64 carats, to the pavé-set diamond surround and bifurcated shoulders, mounted in gold, ring size 6½. Estimate CHF360,000 – CHF540,000 ($409,479 - $614,218) Accompanied by report no. 68360 dated 27 May 2013 from the SSEF Swiss Gemmological Institute stating that the ruby is of Burmese origin, with no indications of heating, and an Appendix indicating that 'A natural ruby from Burma of this quality and size is... [Lire la suite]

A sapphire and diamond ring. Photo Christie's Image Ltd 2014. Set with a cushion-shaped sapphire, weighing approximately 35.74 carats, to the old-mine brilliant-cut diamond shoulders, weighing approximately 2.36 and 2.31 carats, and plain hoop, mounted in platinum, ring size 5¾. Estimate CHF400,000 – CHF580,000 ($454,976 - $659,716)Accompanied by report no. 13100043 dated 9 October 2013 from the Gübelin GemLab stating that the sapphire is of Ceylon origin, with no indications of heating, and an Information Sheet on Unheated... [Lire la suite]

A sapphire and diamond ring. Photo Christie's Image Ltd 2014. Set with a cushion-shaped sapphire, weighing approximately 20.20 carats, to the shield-shaped diamond shoulders, mounted in platinum, ring size 4¾. Estimate CHF420,000 – CHF580,000 ($477,725 - $659,716) Accompanied by report no. 14030180 dated 24 March 2014 from the Gübelin Gemlab stating that the sapphire is of Kashmir origin, with no indications of heating, and an Information Sheet on Unheated sapphires Report no. 71208 dated 25 September 2013 from the SSEF Swiss... [Lire la suite]

A ruby and diamond ring. Photo Christie's Image Ltd 2014. Set with a cushion-shaped ruby, weighing approximately 10.80 carats, to the pavé-set diamond surround and shoulders, mounted in platinum, ring size 6¼. Estimate CHF440,000 – CHF530,000 ($500,474 - $602,844) Accompanied by report no. 0606562 dated 6 July 2006 from the Gübelin GemLab stating that the ruby is of Burmese origin, with no indications of heating, and an Appendix stating that the ruby 'possesses a richly saturated and homogeneous colour' Report no. 73643 dated 24... [Lire la suite]

An exceptional unmounted alexandrite. Photo Christie's Image Ltd 2014. The cushion-shaped alexandrite weighing approximately 21.41 carats, in purple leather fitted case. Estimate CHF450,000 – CHF650,000 ($511,848 - $739,337) Accompanied by Premium Report no. 71419 dated 17 October 2013 from the SSEF Swiss Gemmological Institute stating that the alexandrite is of Russian origin, with no indications of treatment and a distinct colour-change from green to purple, and an Appendix letter indicating that 'A natural alexandrite from... [Lire la suite]

A sapphire and diamond necklace, by Harry Winston. Photo Christie's Image Ltd 2014. Designed as a series of graduated cushion-shaped sapphires linked with marquise-shaped and brilliant-cut diamond clusters, mounted in platinum, inner circumference 36.5 cm, in black leather Harry Winston case. With maker's mark of Jacques Timey and signed Winston for Harry Winston. Estimate CHF450,000 – CHF630,000 ($511,848 - $716,588) Accompanied by report no. 73705 dated 27 March 2014 from the SSEF Swiss Gemmological Institute stating that the... [Lire la suite]

A set of ruby and diamond jewellery, by Harry Winston, and a diamond necklace. Photo Christie's Image Ltd 2014. Comprising a brooch, centering upon an oval-shaped ruby, weighing approximately 13.12 carats, within three rows of graduated brilliant-cut diamonds, mounted in platinum, 4.6 cm, a pair of ear clips, each set with an oval-shaped ruby, weighing approximately 11.20 and 10.48 carats, within a double row of graduated brilliant-cut diamonds, mounted in platinum and gold, 2.8 cm, and a necklace designed as five rows of... [Lire la suite]

A ruby and diamond ring. Photo Christie's Image Ltd 2014. Set with an oval-shaped ruby, weighing approximately 7.70 carats, to the brilliant-cut diamond surround and pavé-set shoulders, mounted in gold, ring size 7¼. Estimate CHF600,000 – CHF800,000 ($682,464 - $909,953) Accompanied by report no. 73472 dated 17 March 2014 from the SSEF Swiss Gemmological Institute stating that the ruby is of Burmese origin, with no indications of heating Report no. 0608296 dated 5 September 2006 from the Gübelin GemLab stating that the ruby is of... [Lire la suite]

A pair of emerald and diamond ear pendants. Photo Christie's Image Ltd 2014. Each marquise and pear-shaped diamond cluster top, weighing a total of approximately 14.38 carats, suspending a detachable cushion-shaped emerald pendant, weighing approximately 12.24 and 10.41 carats, mounted in platinum, 4.2 cm. The tops signed HW for Harry Winston. Estimate CHF540,000 – CHF720,000 ($614,218 - $818,957) Accompanied by report no. CS48875A and B dated 27 February 2014 from the AGL American Gemological Laboratories stating that both... [Lire la suite]