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Fancy intense orange-yellow diamond, yellow diamond and diamond ‘Butterfly’ brooch  Photo Tiancheng International

Modelled as a butterfly, the thorax and abdomen set with a marquise-shaped Fancy Intense Orangy-yellow diamond weighing 0.29 carat, the forewing and hindwing of openwork designs set with brilliant-cut yellow diamonds and diamonds, to an en tremblantantennae set with marquise-shaped yellow diamonds, the yellow diamonds and diamonds weighing approximately 6.50 and 1.30 carats respectively, mounted in 18 karat pink, white and yellow gold. Estimate: HK$180,000 - 250,000 US$23,000 - 32,000. Sold for HK$212,400 

Accompanied by GIA report numbered 15608040, dated 08 December 2006, stating that the 0.29 carat diamond is natural, Fancy Intense Orange-Yellow colour, VS1 clarity.

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Very important cat’s-eye chrysoberyl ‘Double Dragon’ ring. Photo Tiancheng International 

Centring on a cabochon cat's-eye chrysoberyl weighing 77.01 carats, to an 18 karat yellow gold mount carved to the obverse with dragon motifs, further designed to the reverse with two entwined dragons, symbolising power and good fortune. Ring size: 10. Estimate: HK$5,400,000 - 6,400,000 (US$695,000 - 820,000). Sold for HK$212,400 

Accompanied by Gubélin report numbered 14031044, dated 25 March 2014, stating that the 77.01 carat cat's-eye chrysoberyl is natural, of Sri Lankan origin, with no indications of treatment, also accompanied by a special appendix stating this beautiful gemstones displays a remarkable blend of colours, known as the "milk and honey" effect.

Tiancheng International. Jewelry and Jadeite.8 june 2014 -http://www.tianchengauction.com/