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 This remarkable piece superseded its base estimate, selling for $458,930 (HK$3,580,00).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.


Speaker in the Spotlight: Q&A with Rui Galopim de Carvalho

Speaker in the Spotlight: Q&A with Rui Galopim de Carvalho

Gem-A 2018 Conference speaker, Rui Galopim de Carvalho FGA DGA, chats to Gem-A ahead of his talk in London this November. 

Read more


Heritage Series: The Trailblazing Efforts of Robert Webster

Heritage Series: The Trailblazing Efforts of Robert Webster

Gem-A's Heritage Series returns to explore the career of one of Gem-A's most prolific writers: Robert Webster.  

Read more


Journal Digest: Amethyst From Rwanda

Journal Digest: Amethyst From Rwanda

Guy Lalous ACAM EG returns with the latest Journal Digest, exploring gem-quality Rwandan amethyst featured in The Journal of Gemmology 2018 Volume 36, No. 1.

Read more


Focus on Fluorescence: Looking for the Light

Focus on Fluorescence: Looking for the Light

From the Summer 2018 issue of Gems&Jewellery Volume 27/No. 2, Gem-A Gemmology Tutor Lily Faber FGA DGA EG explores the importance of fluorescence in gemstone testing.

Read more


Birthstone Guide: Sapphire for Those Born in September

Birthstone Guide: Sapphire for Those Born in September

Lily Faber FGA DGA EG returns with our latest Birthstone Guide as we enter September. 

Read more


Leading the World's First Gemstone Testing Laboratory: Gem-A's Basil Anderson

Leading the World's First Gemstone Testing Laboratory: Gem-A's Basil Anderson

As we build up to the Gem-A Conference 2018 in November, we are celebrating the Gem-A Greats who have been pivotal in our history. This week’s Heritage Series turns to another of Gem-A’s founding fathers, Basil Anderson.

Read more


The Fascinating History of Platinum Jewellery

The Fascinating History of Platinum Jewellery

As a gemstone and jewellery grading and identification expert at Lang Antiques in San Francisco, Starla Turner FGA GG has seen her fair share of exceptional pieces, both historic and contemporary. Here, she delves into the history of platinum and explores how it has influenced jewellers since the 1700s.

Read more


Dr Herbert Smith - Innovator, Inventor, Gem-A President

Dr Herbert Smith - Innovator, Inventor, Gem-A President

Gem-A’s Heritage Series returns to explore the legacy of Dr George Frederick Herbert Smith CBE, Gem-A President 1942-53, whose determination to make gemmology accessible to the jewellery trade still defines Gem-A today.

Read more