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A pair of emerald and diamond ear pendants, Harry Winston. Each marquise and pear-shaped diamond cluster top suspending a detachable cushion-shaped emerald pendant weighing approximately 12.24 and 10.41 carats respectively. Photo: Christie's Images Ltd. 2015

A pair of coloured #diamond and diamond ear clips, by #Molina

A pair of coloured diamond and diamond ear clips, by MolinaEach set with a cut-cornered rectangular-cut Fancy Vivid Yellow diamond of approximately 14.36 and 14.32 carats to a cluster part border of vari-cut diamonds. Photo: Christie's Images Ltd. 2015

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A coloured and colourless diamond ringThe principal pear-shaped Fancy purple-pink diamond of approximately 10.06 carats to the tapered diamond shoulders and plain beveled hoop. Photo: Christie's Images Ltd. 2015

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A diamond set comprising a necklace and a pair of ear pendants set with 323 pear-shaped diamonds weighing a total of approximately 82.24 carats. Mounted in Gold. Photo: Christie's Images Ltd. 2015

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A diamond bangle set with 57 diamonds, DEF IF-VS, weighing a total of approximately 73.12 carats and diamond pavé-set weighing a total of approximately 20.09 carats. Mounted in Platinum. Photo: Christie's Images Ltd. 2015

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 A pair of sapphire, ruby and diamond ear pendants, by Bulgari. Set with 4 cabochon Burmese sapphires weighing a total of approximately 100 carats, the tops pavé-set with cabochon rubies weighing a total of approximately 2 carats and diamonds weighing a total of approximately 5 carats. Photo: Christie's Images Ltd. 2015

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A coloured diamond and diamond ring. Centering Upon an emerald-cut fancy intense yellow diamond of approximately 42,59 carats to the diamond shoulders and plain hoop. Photo: Christie's Images Ltd. 2015

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A pair of diamond ear pendants. Each centering upon a diamond weighing approximately 5,32 and 5,26 carats respectively. Photo: Christie's Images Ltd. 2015

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An emerald and diamond necklace by CartierSet with 30 Colombian emeralds weighing a total of approximately 105 carats and diamonds weighing a total of approximately 46.50 carats Mounted in Gold. Photo: Christie's Images Ltd. 2015

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An Art Deco diamond brooch by Van Cleef & Arpels. The hinged circle set with circular- and baguette-cut diamonds weighing a total of approximately 7.00 carats, mounted in platinum. Photo: Christie's Images Ltd. 2015

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A pair of sapphire and diamond earrings. Each designed as a square cushion-cut sapphire (Ceylon, no heat) of approximately 3.27 and 3.18 carats respectively within a quatrefoil surround set throughout with brilliant-cut diamonds, mounted in platinum. Photo: Christie's Images Ltd. 2015

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A pair of sapphire and diamond earringsEach element designed as an abstract series of blackened gold spirals set throughout with circular-cut sapphires to the oval shaped diamond accents, mounted in blackened gold. Photo: Christie's Images Ltd. 2015

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A diamond single-stone ring. The central cushion-shaped diamond of approximately 5.20 carats to a plain hoop. Mounted in Platinum. Photo: Christie's Images Ltd. 2015

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A pair of emerald and diamond ear pendants by Van Cleef & Arpels. set with 2 pear shaped Colombian emeralds weighing a total of approximately 27.66 carats and 2 emeralds on top weighing a total of approximately 6 carats and a total of approximately 23 carats of marquise, brilliant-cut and pear-shaped diamonds. Mounting in Gold. Photo: Christie's Images Ltd. 2015

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A cultured pearl and diamond necklace, by Cartier. The graduated row of 25 cultured pearls to the pavé-set brilliant-cut diamond ball clasp, signed 'Cartier London'. Photo: Christie's Images Ltd. 2015

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A diamond bracelet. Designed as an articulated openwork strap set to the centre with a single row of oval-shaped diamonds with twin pear-shaped diamond borders. Mounted in Platinum. Photo: Christie's Images Ltd. 2015

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A colourless diamond set. Comprising a necklace, a ring, and a pair of earrings set with heart-shaped diamonds in a brilliant-cut pavé-set surround, the diamonds, weighing a total of 56.74 carats. Mounted in Gold. Photo: Christie's Images Ltd. 2015

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A late 19th century diamond tiara. Designed as an arched foliate spray with three flowerheads mounted en-tremblant set throughout with old-cut diamonds, dismantling to form three spray brooches or hair ornaments from which the three blossoms detach to form further hair ornaments, mounted in silver and gold. Photo: Christie's Images Ltd. 2015

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The Vanderbilt diamond necklace. The front suspending a graduated fringe of detachable pear-shaped diamonds, each from an inverted pear-shaped diamond link, to a graduated line of circular-cut diamonds, spaced by smaller circular-cut diamonds, mounted in platinum. Photo: Christie's Images Ltd. 2015

Christie’s Dubai Auction Week, 15 – 19 March. Jumeirah Emirates Towers Hotel, Sheikh Zayed Road, 72127 Dubai