Four of the Most Expensive Cartier Rings

By Catherine Kim
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Most Expensive Cartier Rings

Cartier is consistently one of the top brands sold at Sotheby's and Cartier rings often top the charts in terms of final selling price at auction. Cartier's popularity is due to its incredibly rich history and innovative designs since 1847. Every month there are over 300,000 searches for Cartier rings on google. We are sharing a list of our top four expensive Cartier rings sold within the last few years.


Cartier Blue Diamond Ring

In 2016, Sotheby's sold a Fancy Vivid Blue diamond Cartier ring for about $19.5 million in 2016. The center fancy vivid blue diamond weighed 8.01 carats. The incredible stone has been named ‘The Sky Blue Diamond’, emphasising its highly sought-after hue.

‘The Sky Blue Diamond’ has been graded Fancy Vivid Blue by the Gemological Institute of America (GIA) – the highest possible colour grading, awarded to no more than 1% of blue diamonds submitted to the GIA. It was also found to have excellent polish and to be of Type IIb, a rare category which represents less than 0.5 % of all diamonds. Describing the diamond, David Bennett, Worldwide Chairman of Sotheby’s International Jewellery Division, said, "The Sky Blue Diamond Carter ring is of a wonderfully clear celestial blue, presented in an extremely elegant square emerald cut – in my view, the most flattering of all the cuts for a coloured diamond. This important gem will, I am sure, captivate all collectors of exceptional gemstones."


Cartier Sapphire Ring

33.51 Carat Emerald-Cut Sapphire Cartier Ring

Sotheby's sold a Cartier ring with a 33.51 carat emerald cut sapphire accented by baguette diamonds in 2023 for nearly $3.3 million. This extraordinary Cartier ring was from the price collection of Constance Prosser Mellon. The sapphire is has no indications of heating and is a Burmese sapphire. The AGL report no. 1101654, dated June 25, 2019 states the color variety of the sapphire is "royal blue". Constance Prosser Mellon and her husband Richard King Mellon were leaders of the Pittsburgh "renaissance" striving to improve their community in the mid 1900s. The couple donated considerable sums to University of Pittsburgh, Carnegie Mellon and other higher education institutions in the area.

33.13 Carat Cartier Diamond Ring

Cartier Diamond Ring

Next on our list of most expensive Cartier rings is a step cut Cartier diamond ring that is 33.13 carats. This incredible Cartier diamond ring sold for $3.2 million in 2022.  The Cartier Diamond Ring GIA report no. 5221617118, states that the diamond is D Colour, VVS1 Clarity, together with a type IIa classification letter and a working diagram stating that the diamond might be internally flawless after minor repolishing. The Cartier ring is also accompanied by GIA report no. 10478841, dated 30 October 1998, and Gübelin report no. 9910036, dated 7 October 1999, each stating the diamond is D Color, Flawless, together with a copy of a Gübelin appendix letter stating that the diamond is type IIa.

12.35 Carat Cartier Emerald Ring

Cartier Emerald Ring

The most expensive Cartier Emerald Ring sold in 2023 for $300,800 with a 12.35 carat center Colombian emerald accented by baguette diamonds. The Cartier emerald ring was from the private collection of Constance Prosser Mellon.

More Cartier Rings

While these incredible Cartier rings are not available for purchase, Sotheby's has a curated selection of Cartier rings available on our Buy Now marketplace. Additionally you can find Cartier rings available in most jewelry auctions. If you are looking to sell a Cartier ring you can contact a specialist in your geography.

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