RESULTS: Jewels: The London Sale






Lots Sold:  253

Lots Offered: 338

Sold by Lot: 75%

Sold by £: 92%

Exchange Rate£:= $ 1.556/  € 1.193





Estimate (£)


Purchase Price




The Portland ruby

A circular-cut Burmese ruby ring of 9.20cts

$366,000 per ct

400,000 - 600,000





The Portland diamond necklace

A circular-oval-cushion and pear-shaped diamond necklace, circa 1870, mounted in silver and gold

400,000 - 600,000



UK Trade


The Portland pearls

A six-pearl and diamond brooch, circa 1870, mounted in silver and gold


500,000 - 700,000





An antique diamond riviere set with 32 graduated old cut diamond collets, circa 1870, mounted in silver and gold

300,000 - 400,000



UK Trade


The Portland Tiara

An antique sapphire diamond and pearl tiara, circa 1890, mounted in silver and gold


250,000 - 300,000



UK Trade



An antique emerald and diamond bow brooch

100,000 - 150,000



UK Private


An antique purple sapphire and diamond brooch

80,000 - 100,000



US Trade


An antique diamond scroll necklace

40,000 - 50,000



UK Trade


The Portland Stomacher brooch

An antique sapphire, diamond and pearl brooch, circa 1880, mounted in silver and gold 

60,000 - 80,000



UK Trade


A rectangular cut diamond of 5.12cts, E colour, internally flawless by Graff

$55,000 per ct

150,000 - 200,000





Comment: Keith Penton, Head of Jewels, Christie’s London:

“This auction highlights Christie’s longstanding tradition of selling the most important royal, aristocratic and historic jewels. The Property from the Portland Collection exemplifies an extremely rare group of ancestral jewels offered directly to the market for the first time. Sparking fierce competition, these lots tripled their pre-sale estimate, selling 100% and achieving £8,651,350. The top lot was a 9.20 carat Burmese ruby of exceptional colour and translucency which realised £2,169,250, $366,000 per carat. International clients from 26 countries competed throughout the auction, in the room, on Christie’s LiveTM and with over 100 registered telephone bidders.”

About Christie’s

Founded in 1766, Christie’s is a world-leading art and luxury business. Renowned and trusted for its expert live and online auctions, as well as its bespoke private sales, Christie’s offers a full portfolio of global services to its clients, including art appraisal, art financing, international real estate and education. Christie’s has a physical presence in 46 countries, throughout the Americas, Europe, Middle East, and Asia Pacific, with flagship international sales hubs in New York, London, Hong Kong, Paris and Geneva. It also is the only international auction house authorized to hold sales in mainland China (Shanghai).

Christie’s auctions span more than 80 art and luxury categories, at price points ranging from $200 to over $100 million. In recent years, Christie’s has achieved the world record price for an artwork at auction (Leonardo da Vinci’s Salvator Mundi, 2017), for a 20th century artwork (Andy Warhol’s Shot Sage Blue Marilyn, 2022) and for a work by a living artist (Jeff Koons’ Rabbit, 2019). Christie's is also recognised as a reference for prestigious single owner collections, having auctioned 8 of the 10 most important collections in history.

Christie’s Private Sales offers a seamless service for buying and selling art, jewellery and watches outside of the auction calendar, working exclusively with Christie’s specialists at a client’s individual pace.

Recent innovations at Christie’s include the groundbreaking sale of the first NFT for a digital work of art ever offered at a major auction house (Beeple’s Everydays, March 2021), with the unprecedented acceptance of cryptocurrency as a means of payment. As an industry leader in digital innovation, Christie’s also continues to pioneer new technologies that are redefining the business of art, including use of hologram technology to tour life-size 3D objects around the world, and the creation of viewing and bidding experiences that integrate augmented reality, global livestreaming, buy-now channels, and hybrid sales formats. 

Christie’s is dedicated to advancing responsible culture throughout its business and communities worldwide, including achieving sustainability through net zero carbon emissions by 2030, and actively using its platform in the art world to amplify under-represented voices and support positive change.

Browse, bid, discover, and join us for the best of art and luxury at: or by downloading Christie’s apps. The COVID-related re-opening status of our global locations is available here.