A 90.80ct Pear-shaped W to X Range, Light Brown Color VS2 Clarity Diamond and Diamond “Starlight” Pendant Necklace, designed by William Goldberg. Photo courtesy of Christie's

The center pear-shaped diamond weigh 90.8ct, and is accented by a series of pear-shaped pink diamond flowerheads, suspended from a three-strand brilliant and baguette-cut diamond neck chain. The piece is mounted in platinum and 18k rose gold. High estimate: US$4.5 million

Magnificent Jewels sale at Christie's  Hong Kong. Tuesday 26 November 2013