Diamond and pink diamond ring. photo Sotheby's

Centring on a brilliant-cut diamond weighing approximately 33.25 carats, amid a brilliant-cut pink diamond support extending to the wide shank, the pink diamonds together weighing approximately 5.00 carats, mounted in 18 karat pink gold. Est. 3,200,000—3,800,000 HKD. Lot Sold 4,220,000 HKD

NOTE: Ring size: 8

Fancy light pink diamond and diamond ring. photo Sotheby's

Centring on a rectangular modified brilliant-cut fancy light pink diamond weighing 4.05 carats, surrounded by brilliant-cut diamonds extending to the shoulders, mounted in platinum and 18 karat pink gold. Est. 1,800,000—2,300,000 HKD. Lot Sold 3,140,000 HKD

NOTE: Ring size: 5¾

Accompanied by GIA report numbered 2105482603, dated 22 December 2008, stating that the 4.05 carat diamond is natural, Fancy Light Pink colour, Internally Flawless clarity.

Diamond and fancy intense purple-pink diamond pendant necklace. photo Sotheby's

Suspending on a kite-shaped diamond weighing 5.01 carats, surmounted by a pear-shaped fancy intense purple-pink diamond weighing 0.51 carat, to a brilliant-cut diamond-set hoop, accompanied by a link chain, mounted in 18 karat white and pink gold, length approximately 400mm. Est. 1,200,000—1,500,000 HKD. Lot Sold 1,460,000 HKD

NOTE: Accompanied by GIA report numbered 16401498, dated 14 November 2007, stating that the 5.01 carat diamond is E colour, VVS2 clarity; and 15734611, dated 15 March 2007, stating that the 0.51 carat diamond is natural, Fancy Intense Purple-Pink colour.

Fancy light pink diamond and diamond ring. photo Sotheby's

Centring on an oval fancy light pink diamond weighing 3.01 carats, framed by brilliant-cut diamonds, the shoulders pavé-set with brilliant-cut diamonds, mounted in platinum, 18 karat white gold ring guard fitting. Est. 580,000—680,000 HKD. Lot Sold 980,000 HKD

NOTE: Ring size: 5½

Accompanied by GIA report numbered 13297252, dated 29April 2004, stating that the 3.01 carat diamond is natural, Fancy Light Pink colour.

Pair of diamond and pink diamond pendent earrings. photo Sotheby's

Each suspending on an oval diamond weighing 2.16 and 2.07 carats respectively, framed by brilliant-cut diamonds extending to the hook surmount, spaced by a brilliant-cut pink diamond,mounted in 18 karat white and pink gold. Est. 620,000—720,000 HKD. Lot Sold 776,000 HKD

NOTE: Accompanied by GIA reports numbered 2105316094 and 105532895, dated 28 October 2008 and 2 February 2009 respectively, stating that the 2.16 and 2.07 carat diamonds are D colour, Internally Flawless clarity; and 14420762 and 14420763, dated 8 June 2005, stating that the 0.18 and 0.16 carat diamonds are natural, Fancy Deep Pink and Fancy Vivid Purplish Pink colour.

Diamond and pink diamond pendant. photo Sotheby's

The pendant set with a marquise-shaped diamond weighing approximately 6.10 carats, surmounted by an inverted pear-shaped diamond and an oval pink diamond, each framed by brilliant-cut diamonds of similarly colours, accompanied by a link-chain spectacle-set with rose-cut diamonds, mounted in 18 karat white and pink gold, length approximately 400mm. Est. 400,000—460,000 HKD. Lot Sold 500,000 HKD

Diamond and pink diamond ring. photo Sotheby's

Centring on a cushion-shaped old mine-cut diamond weighing 3.06 carats, framed by brilliant-cut pink diamonds extending to the split shoulders and basket, the pink diamonds together weighing approximately 1.25 carats, mounted in 18 karat pink and white gold. Est. 350,000—400,000 HKD. Lot Sold 437,500 HKD 

NOTE: Ring size: 5¼

Accompanied by GIA report numbered 16876162, dated 11 March 2008, stating that the 3.06 carat diamond is G carat, VS1 clarity.

Pink diamond hair band. photo Sotheby's

The flexible hair band decorated to the obverse with an openwork coil pavé-set with brilliant-cut pink diamonds together weighing approximately 4.15 carats, mounted in 18 karat pink gold. Est. 70,000—90,000 HKD. Lot Sold 125,000 HKD

Pink diamond and diamond 'cross' pendant. photo Sotheby's

Composed of six brilliant-cut pink diamonds, each within a circular frame set with brilliant-cut diamonds, connected by baguette diamonds, the pink diamonds and diamonds together weighing approximately 2.50 carats, accompanied by a double chain necklace spectacle-set with brilliant-cut diamonds, mounted in platinum and 18 karat pink gold, length approximately 400mm. Est. 100,000—130,000 HKD. Lot Sold 125,000 HKD

Sotheby's. MAGNIFICENT JEWELS & JADEITE. 07 Apr 10. Hong Kong www.sothebys.com