Yellow diamonds @ Christie's. Jewels: The Hong Kong Sale. 1 June 2010. Hong Kong

A rare coloured diamond and diamond ring.

Set with a square-shaped fancy vivid yellow diamond weighing 12.87 carats, to the trapeze-cut diamond shoulders, mounted in platinum and 18k gold, ring size 5¾. Estimate HK$7,600,000 - HK$10,000,000 Price Realized HK$9,020,000 ($1,162,729)

Accompanied by report no. 2115796299 dated 9 March 2010 from the Gemological Institute of America stating that the 12.87 carat diamond is a fancy vivid yellow, natural colour, VS1 clarity

12.87克拉方形鮮彩黃色VS1鑽石鑽石戒指

An impressive coloured diamond and diamond ring.

Set upon a brilliant-cut fancy intense yellow diamond weighing 33.88 carats, within a pear-shaped diamond surround, mounted in platinum and 18k gold, ring size 6½. Estimate HK$9,500,000 - HK$12,000,000 Price Realized HK$$8,660,000 ($1,116,322)

Accompanied by report no. 5101992711 dated 29 July 2009 from the Gemological Institute of America stating that the 33.88 carat diamond is fancy intense yellow, VS1 clarity

33.88克拉圓形濃黃色VS1鑽石鑽石戒指

An important coloured diamond and diamond ring by Van Cleef & Arpels.

Set with a cushion-shaped fancy yellow diamond weighing 16.05 carats, within a brilliant-cut diamond surround, flanked by two marquise-cut diamonds, to the single-cut diamond bifurcated quarter-hoop, mounted in platinum and 18k yellow gold, ring size 6½, in navy blue suede Van Cleef & Arpels case. Signed Van Cleef & Arpels, No. 23500. Estimate HK$1,600,000 - HK$2,400,000 Price Realized HK$3,260,000 ($420,232)

Accompanied by report no. 10877742 dated 3 November 1999 from the Gemological Institute of America stating that the 16.05 carat diamond is fancy yellow, natural colour, VS1 clarity, with excellent symmetry

16.05克拉枕形黃色VS1鑽石戒指Van Cleef & Arpels設計

A coloured diamond and diamond ring.

Set with a round-cornered modified rectangular-shaped fancy vivid yellow diamond weighing 5.09 carats, to the trapeze-cut diamond shoulders, mounted in 18k yellow and white gold, ring size 5¼. Estimate HK$1,600,000 - HK$2,500,000 Price Realized HK$2,420,000 ($311,952)

Accompanied by report no. 2115430584 dated 8 December 2009 from the Gemological Institute of America stating that the 5.09 carat diamond is fancy vivid yellow, internally flawless clarity

5.09克拉方形鮮彩黃色全美鑽石戒指

A coloured diamond and diamond ring.

Set with a rectangular-shaped fancy light yellow diamond weighing 22.88 carats, flanked on either side by a heart-shaped diamond, mounted in 18k gold, ring size 6. Estimate HK$1,450,000 - HK$2,000,000 Price Realized HK$2,180,000 ($281,014)

Accompanied by report no. 6117736954 dated 23 February 2010 from the Gemological Institute of America stating that the 22.88 carat diamond is fancy light yellow, VS1 clarity

22.88克拉方形淡黃色VS1鑽石戒指

A coloured diamond ring.

Set with a brilliant-cut light yellow diamond weighing 17.56 carats, mounted in 14k gold, ring size 5. Estimate HK$800,000 - HK$1,200,000 Price Realized HK$1,280,000 ($164,999)

17.56克拉圓形鑽石戒指

A coloured diamond and diamond pendant/ring.

Set with a marquise-cut fancy yellow diamond weighing 11.99 carats, within a pavé-set diamond surround and bail, mounted in 18k white and yellow gold, (with ring setting designed as a pavé-set diamond bifurcated half-hoop), pendant 3.5 cm long, ring size 6¼. Estimate HK$1,500,000 - HK$2,500,000 Price Realized HK$1,220,000 ($157,265)

Accompanied by report no. 2115227179 dated 12 October 2009 from the Gemological Institute of America stating that the 11.99 carat diamond is fancy yellow, natural colour, SI1 clarity

11.99克拉欖尖形黃色SI1鑽石鑽石戒指

A coloured diamond and diamond twin stone ring.

Set with a modified shield-shaped fancy yellow diamond weighing 3.56 carats, and a modified shield-shaped diamond weighing 3.06 carats, within a pavé-set diamond surround, to the polished white gold hoop, mounted in 18k white and yellow gold, ring size 5½. Estimate HK$800,000 - HK$1,200,000 Price Realized HK$980,000 ($126,327)
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Accompanied by report no. 6117963289 dated 12 April 2010 from the Gemological Institute of America stating that the 3.56 carat diamond is fancy light yellow, natural colour, VS2 clarity

Report no. 15025651 dated 13 March 2006 from the Gemological Institute of America stating that the 3.06 carat diamond is D colour, internally flawless clarity

足色全美3.06克拉盾形鑽石3.55克拉盾形淡黃色VS2鑽石戒指

A coloured diamond and diamond ring.

Set with a modified square-shaped fancy intense yellowish green diamond weighing 6.09 carats, to the pavé-set diamond gallery and three quarter-hoop, mounted in 18k gold, ring size 5½. Estimate HK$550,000 - HK$800,000 Price Realized HK$956,000 ($123,234)

Accompanied by report no. 1112126004 dated 6 October 2009 from the Gemological Institute of America stating that the 6.09 carat diamond is fancy intense yellowish green, natural colour, VS2 clarity; with additional comment stating that the color of this stone changes temporarily when gently heated, or when left in darkness for a period of time and is known in the trade as "Chameleon"

6.09克拉濃黃綠色VS2鑽石戒指

A pair of coloured diamond and diamond earrings.

One set with a heart-shaped fancy yellow diamond weighing 3.08 carats, to the pavé-set yellow diamond surround and hook, the other set with a heart-shaped colourless diamond weighing 2.51 carats, to the pavé-set diamond surround and hook, mounted in 18k white and yellow gold, 2.0 cm long. Estimate HK$600,000 - HK$800,000 Price Realized HK$920,000 ($118,593)

Accompanied by report no. 5111611156 dated 20 January 2010 from the Gemological Institute of America stating that the 3.08 carat diamond is fancy yellow, natural colour, internally flawless clarity, with excellent symmetry

Report no. 17785524 dated 22 June 2009 from the Gemological Institute of America stating that the 2.51 carat diamond is D colour, internally flawless clarity

足色全美2.51克拉心形鑽石3.08克拉黃色全美鑽石耳環一對

A coloured diamond and diamond ring by Mitsuo Kaji.

Set with an oval-shaped intense yellow diamond weighing 2.39 carats, flanked on either side by a tapered pentagon-cut diamond, within brilliant and marquise-cut diamond surround accented by light pink diamonds, mounted in platinum, ring size 6½. With maker's mark for Mitsuo Kaji. Accompanied by a certificate of authenticity from Mitsuo Kaji. Estimate HK$320,000 - HK$480,000 Price Realized HK$572,000 ($73,734)

2.39克拉橢圓形黃鑽鑽石戒指Mitsuo Kaji設計

A coloured diamond necklace.

Designed as a series of nineteen graduated cushion-shaped light yellow diamonds, joined by polished gold entwined loops, mounted in 18k gold, 44.0 cm long. Estimate HK$400,000 - HK$600,000 Price Realized HK$325,000 ($41,894)

The total weight of the diamonds is 17.05 carats

方形黃鑽項鍊（19顆共重17.05克拉）

A coloured diamond ring.

Set with a cut-cornered modified rectangular-shaped fancy vivid yellow diamond weighing 2.01 carats, to the pavé-set vivid yellow diamond surround, gallery and three quarter-hoop, mounted in 18k gold, ring size 6. Estimate HK$250,000 - HK$350,000 Price Realized HK$312,500 ($40,283)

Accompanied by report no. 17461879 dated 14 July 2008 from the Gemological Institute of America stating that the 2.01 carat diamond is fancy vivid yellow, natural colour, internally flawless clarity

2.01克拉方形鮮彩黃色全美鑽石戒指

A coloured diamond and diamond pendant necklace.

Set with a marquise-cut diamond surmount weighing 1.14 carats, to the pavé-set colourless and pink diamond bar, spaced by a brilliant-cut fancy vivid yellow diamond weighing 0.53 carat, suspending a round-cornered square-shaped faint green diamond weighing 2.00 carats, to the fine neckchain, mounted in platinum, 43.0 cm long. Estimate HK$160,000 - HK$240,000 Price Realized HK$162,500 ($20,947)

Accompanied by report no. 17422301 dated 9 July 2008 from the Gemological Institute of America stating that the 2.00 carat diamond is faint green, natural colour, VS2 clarity

Report no. 6117513743 dated 6 January 2010 from the Gemological Institute of America stating that the 0.53 carat diamond is fancy vivid yellow, natural colour, I1 clarity

彩鑽鑽石項鍊

A coloured diamond and diamond ring.

Set with a cushion-shaped fancy orange-brown diamond weighing 3.02 carats, to the pavé-set diamond surround and three quarter-hoop, mounted in platinum, ring size 5¾. Estimate HK$120,000 - HK$180,000 Price Realized HK$162,500 ($20,947)

Accompanied by report no. 17466529 dated 21 July 2008 from the Gemological Institute of America stating that the 3.02 carat diamond is fancy orange-brown, natural colour, VS2 clarity

3.02克拉枕形橙啡色VS2鑽石鑽石戒指

A coloured diamond 'cross' necklace.

Suspending a brilliant-cut vivid yellow diamond cross within a pavé-set vivid yellow diamond surround and bail, joined to the fine gold neckchain, mounted in 18k gold, 40.5 cm long. Estimate HK$50,000 - HK$80,000 Price Realized HK$50,000 ($6,445)

The total weight of the yellow diamonds is 1.52 carats

黃鑽十字架吊墜項鍊

Christie's. Jewels: The Hong Kong Sale. 1 June 2010. Hong Kong www.christies.com