Rare 4.23ct Fancy Pink-Purple Diamond Hits $1.1m at Auction

An exceptionally rare and extraordinary 4.23 carat fancy pink-purple oval-cut diamond ring sold for $1.1 million at Bonhams Rare Jewels and Jadeite Auction in Hong Kong on November 27. 

Created by Taiwanese jewellery designer Cindy Chao, the beautiful dress ring caused a flurry of bids among local and global collectors of rare jewels and gemstones, eventually fetching more than HK $9,100,00.

The piece is considered the star of Chao's Ribbon Collection, with the 4.23 carat fancy colour diamond surrounded by ribbons of precious metal set with round brilliant and cushion-cut diamonds.


The impressive 4.23 carat fancy-coloured diamond and diamond dress ring by Cindy Chao. ©Bonhams

The ring headlined the 123-lot sale - led by Bonhams CEO and group head of jewellery, Matthew Girling - that fetched just over $7 million in total. 

Read more: Alrosa Extracts Its Largest Fancy-Coloured Diamond of 2017


An important jadeite bead, ruby and diamond necklace, measuring 11.9-7.8mm, spaced by ruby and diamond-set rondelles, completed by a clasp set with rose and brilliant-cut diamonds, diamonds approximately 1.20 carats total, length 80.8cm. ©Bonhams

Highlights from the auction also included a rare 10.02 carat 'no-oil' cushion-shaped Columbian emerald ring set with trillion-cut diamond shoulders. The ring, reaching well above its estimate, sold for $781,976 (HK$6,100,00).

"Overall the sale was very positive with strongest interest from local and global collectors in white colourless diamonds, fine gemstones and rare jewels," commented Graeme Thompson, director of jewellery at Bonhams Asia. "Bids came in from around the world including Pan-Asia, the Middle East, Europe and America reflecting Hong Kong as an international auction market hub."


Left: The
Fine Emerald and Diamond Ring; the cushion-shaped emerald, weighing 10.02 carats. Right: The Impressive Diamond and Coloured Diamond Ring, by Stephen Webster, 2017. ©Bonhams

Read more: Magnificent 51ct Dynasty Diamond Unveiled by Russian Mining Giant

Left: A Fine Emerald and Diamond Necklace, by Harry Winston Right: An Early 20th Century Pair of Fine Emerald and Diamond Pendent Earrings, Circa 1920. ©Bonhams

The final sale of the day ended in what can only be described as a 'heated bidding war' for a 10.03 carat diamond and coloured diamond ring by British jewellery designer, Stephen Webster. This remarkable piece superseded its base estimate, selling for $458,930 (HK$3,580,00).

The next fine jewellery auction by Bonhams auction house will take place on December 7, 2017, in London.

For further information and photos of Bonham's past, present and future auctions visit bonhams.com

Cover image: 4.23 carat fancy pink-purple diamond and diamond dress ring by Cindy Chao. All images courtesy ©Bonhams.


Field Trip: A Visit to Gem-A ATC Institut de Gemmologie de Madagascar

Field Trip: A Visit to Gem-A ATC Institut de Gemmologie de Madagascar

Gem-A tutor Barbara Kolator B.Sc. M.Sc. FGA DGA EG shares some highlights from her recent trip to the Institut de Gemmologie de Madagascar in Antananarivo, which is a proud Gem-A Accredited Teaching Centre (ATC). 

Read more


Natural Pearls: Marie Antoinette's £27.8 million Precious Pendant

Natural Pearls: Marie Antoinette's £27.8 million Precious Pendant

Famous for her ostentatious sense of style, 18th century French Queen Marie Antoinette was back as the centre of attention at Sotheby's in November thanks to the record-breaking sale of her natural pearl and diamond pendant. Here, Beth West FGA DGA EG considers the history behind this fascinating piece. 

Read more


Birthstone Guide: Tanzanite for Those Born in December

Birthstone Guide: Tanzanite for Those Born in December

Looking for the perfect festive gift for a December baby? Gem-A tutor Lily Faber FGA DGA EG considers the December birthstone tanzanite and how this relatively new gemstone compares to its purple and blue-hued rivals.

Read more


Journal Digest: Bumble Bee Stone from Indonesia

Journal Digest: Bumble Bee Stone from Indonesia

Guy Lalous ACAM EG delves into an article on Indonesian Bumble Bee Stone (BBS) from The Journal of Gemmology Volume 36, No.3, and presents his edited take on the most essential information, findings and lessons to be learnt. Continue reading here...

Read more


Retail Focus: Beyond the Green

Retail Focus: Beyond the Green

From the Summer 2018 issue of Gems&Jewellery, Gem-A Gemmology Tutor Beth West FGA DGA EG explores Colombian emeralds. 

Read more