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Bonhams Jewellery auctions offer gemstones and jewels from names including Cartier, Van Cleef & Arpels, Boucheron, Harry Winston, Tiffany, Bulgari, Chaumet and Verdura. We hold over 40 auctions a year across all the key jewellery markets: New York, London, Hong Kong and Los Angeles.

Our auction record results include The Hope Spinel, which achieved the world record price per carat for a spinel sold at auction. We also achieved world record prices per carat for a Fancy Blue diamond and a Fancy Pink diamond sold at auction. Among the high profile, international collections that we have brought to auction are the jewels of Dame Joan Collins, Lauren Bacall and Jackie Collins.

We champion wearable art and works by 'artist jewellers' - from Andrew Grima, John Donald and David Thomas in the UK to Art Smith, Betty Cook and William Spratling in the US. In 2006, we curated the first auction dedicated to works by Grima, followed by a 100% sold private collection of Grima jewellery in 2017 and a successful sale of artist jewellery from the Crawford Collection in 2021.

Buying and selling jewellery at Bonhams
Bonhams Jewellery department has specialists and consultants across the UK, Europe, America, Asia and Australia. Our passionate and experienced team include qualified gemologists and knowledgeable jewellery connoisseurs, up to date on the latest market trends. We regularly collaborate with other Bonhams departments – from Designer Handbags and Watches to Contemporary Art – to cross-market items to new buyers.

With offices and representatives in 22 countries, Bonhams gives buyers and sellers access to a global network of collectors, to achieve the highest price and level of customer satisfaction possible. Contact a specialist directly for more information or submit your item online for a free auction estimate.

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Thinking of selling? Get a free auction estimate by submitting your item online or contacting your local Bonhams. With specialists based in towns and cities worldwide, we are your local auction house.

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Exceptional results

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Photo of Jean Ghika

Jean Ghika

Global Head of Jewellery

Jean Ghika is Bonhams Global Director of Jewelry. Based in London, she oversees all jewelry auctions in the UK, Europe, America, Hong Kong and Australia. Under Jean's leadership, the London Jewelry de…

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Caroline Morrissey

Head of Department

Caroline Morrissey is Director and Head of Jewellery at Bonhams in New York and an auctioneer. Her areas of expertise span diamonds and coloured gemstones to 20th century jewellery. She has a particul…

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Emily Waterfall

Head of Department/Director

Based in Los Angeles, Emily Waterfall is the Director of the Jewelry Department for Bonhams Auction House. With over 16 years of experience, Emily is responsible for business-getting, client developme…

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Gloria Lieberman

Vice President

Gloria Lieberman is Vice President of Bonhams Skinner and one of the world's renowned experts on antique jewelry. She founded Bonhams Skinner's Fine Jewelry department in 1980 and served as Director f…

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Jennifer Tonkin

Senior Specialist

Jennifer Tonkin is Senior Specialist for Bonhams Jewellery department at New Bond Street in London. Her main area of interest is jewellery produced in Britain, France and America between 1930-70 and s…

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Eleonora D'Ottavi

Head of Department, Italy

Eleonora D'Ottavi is Head of Jewelry at Bonhams in Rome. She supports the category's global auctions and her areas of expertise include 20th century jewelry design and Italian jewelers. Since joining …

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Kate Flitcroft

Senior Specialist

Kate Flitcroft is a Senior Specialist for Jewellery at Bonhams New Bond Street in London. Before joining Bonhams in 2021, Kate was Head of Jewellery and Silver for another auction house. She also spen…

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Kaitlin Shinnick

Director, Fine Jewelry

Kaitlin Shinnick is Director of Jewelry at Bonhams Skinner in Boston. Her areas of expertise are in 19th and 20th century jewelry, colored gemstones and American jewelry. Since joining Bonhams Skinner…

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John Colasacco

Deputy Director, Fine Jewelry

John Colasacco is Deputy Director of Fine Jewelry at Bonhams Skinner. He has maintained a lifelong interest in fine jewelry with a particular expertise in antique and period pieces. As Deputy Director…

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Allison Osborn


Allison Osborn is a Specialist in the Los Angeles Jewelry Department. She received her Bachelor of Fine Arts in Painting & Curatorial studies from Maryland Institute College of Art, and has also compl…

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Beth Zwiacher


After five years of working in healthcare consulting, Beth decided to make her passion for jewelry her career. She worked in jewelry production, metalsmithing, and marketing for important jewelry desi…

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Rebecca Bohle


Rebecca Bohle is a Specialist for Jewellery in Edinburgh. She is a fully qualified gemmologist (FGA) and is responsible for all jewellery valuations in Scotland. Her love of jewellery began when she s…

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Photo of Tabitha Downer

Tabitha Downer


Tabitha is a Specialist for Bonhams Jewelry department at Knightsbridge, London. Her main areas of interest include early to mid-20th century Art Moderne jewelry, and the Georgian period. Tabitha work…

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Haley Jaras


Haley is a Specialist for Bonhams Jewelry department in New York. She has worked in every facet of the trade from retail to wholesale, including grading and pricing of diamonds and colored stones for …

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Natasha Patel

Junior Specialist

Natasha Patel is a Junior Specialist for Bonhams Jewelry in New York. Her areas of expertise include modern contemporary jewellery. Before joining Bonhams in 2022, Natasha started her career with a lu…

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Kelly Sitek

Department Coordinator & Specialist

Kelly Sitek is a Cataloguer for Bonhams Jewelry department in Los Angeles. She joined in 2011 and assists with expanding the Art Jewelry and Mexican silver jewelry markets. Kelly holds a Graduate Gemo…

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Olivia Joy


Olivia Joy is a Cataloguer at Bonhams Skinner's Jewellery department in Boston. Born and raised in New England, and steeped in the arts from a very young age, Olivia holds a lifelong love of art and a…

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Stewart Young

Director of Jewellery/Head of Jewellery, Asia

Stewart Young is Bonhams Director of Jewellery and Head of Jewellery, Asia. Based in Hong Kong, he works with the wider global jewellery team on promoting all sales in the region. Joining Bonhams in 2…

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Carole Gordon

Head of Department

Carole Gordon is the Head of the Jewelry Department at Bonhams Knightsbridge. With 11 Jewelry auctions scheduled each year, Bonhams Knightsbridge is the UK leader in mid-market Jewelry sales. Carole p…

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Mariel Olenski


Mariel Olenski is a Specialist in fine jewelry for Bonhams. Starting her career in the diamond supply chain, Mariel became highly skilled at diamond grading through working for her third-generation fa…

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Fiona Frith

Senior Specialist

Fiona Frith is a Senior Specialist in the Fine Jewelry department at Bonhams in Sydney. In addition to overseeing the Australia Jewels calendar of auctions, Fiona works with the global jewelry team to…

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Hubert Felbacq

Head of Department

Hubert Felbacq is Head of Furniture, Works of Art and Luxury departments at Bonhams Cornette de Saint Cyr.

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Submit your item online for a free and confidential valuation. If it’s suitable for sale, a specialist will provide an auction estimate and advise on the next steps for selling.

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