A 10.05-carat pink diamond ring is the star of an upcoming Sotheby’s fine jewellery event in Hong Kong, which coincides with the auction house’s 50th anniversary in Asia.

Named “The Pink Dawn,” the ring shines the spotlight on the Kao mine in Lesotho, which contains the largest kimberlite pipe in the South African region, after the closure of Australia’s Argyle mine in 2020. The ring is expected to fetch HK$128 million to HK$168 million (around US$16.3 million to US$21.4 million).

The Gemological Institute of America (GIA) has graded The Pink Dawn as a fancy vivid purplish pink diamond – the strongest saturation of colour in a light- to medium-tone range.

Sotheby’s is also offering other exceptional jewellery pieces, including “The Algeiba Star” necklace adorned with a 133.04-carat fancy vivid yellow diamond and white diamond accents, which has a pre-sale estimate of HK$50 million to HK$70 million (around US$6.37 million to US$8.92 million).

The centre stone is the largest fancy vivid yellow diamond ever graded by GIA to appear at auction in recent years. Prior to that, a diamond of the same calibre weighing 110.03 carats, named “The Lady Dalal,” sold for US$12.3 million at Sotheby’s Geneva in 2011.

Another highlight is a necklace adorned with jadeite beads, ruby and diamonds, which is valued at US$5 million. Named “The Emperor's Treasure,” the necklace features 43 well-matched jadeite beads ranging from 11mm to 13mm in size, with “Imperial Green” colour and fine texture. 

Sotheby’s is holding its Anniversary Luxury Evening Auction on April 5 where these two necklaces will be presented while other fine jewellery pieces will be featured in its Magnificent Jewels sale part I on April 4. The auction house is holding a series of events and auctions across Hong Kong, China and overseas in celebration of its golden anniversary.