The costliest diamond ring is more than just a piece of jewelry—it’s a symbol of rarity, luxury, and unmatched beauty. These rings feature some of the rarest diamonds in the world, with price tags that reflect their exclusivity. No matter if you're a jewelry enthusiast or simply curious about the most extravagant pieces, this list of the top 10 costliest diamond rings will captivate you. From vivid pink diamonds to flawless blue gems, these rings are the epitome of opulence. Dig in to explore the fascinating world of the costliest diamond rings and what makes them so special.
1. The Pink Star Diamond Ring
The Pink Star diamond ring holds the title of the costliest diamond ring ever sold, fetching a staggering $71.2 million at a Sotheby’s auction in 2017. This breathtaking ring features a 59.60-carat oval-shaped fancy vivid pink Type IIa diamond, the largest of its kind.
- Key details:
- Mined in Africa in 1999, originally weighing 132.5 carats.
- Cut and polished over two years to achieve its flawless finish.
- Purchased by Hong Kong-based jewelry company Chow Tai Fook.
For more on this iconic ring, visit La Patiala’s feature on the Pink Star.
2. The Williamson Pink Star Diamond Ring
The Williamson Pink Star is another exceptional pink diamond ring, sold for $57.7 million at a Sotheby’s auction in 2022. This 11.15-carat cushion-cut diamond is internally flawless and boasts a vivid pink hue.
- Key details:
- Cut from a 32.32-carat rough diamond found in Tanzania.
- Set in 18K rose and white gold with colorless and pink diamonds.
- Holds the record for the highest per-carat price for any gemstone.
Learn more about this ring at Sotheby’s official page.
3. The Oppenheimer Blue Diamond Ring
The Oppenheimer Blue diamond ring sold for $57.5 million at a Christie’s auction in 2016. This 14.62-carat rectangular-cut fancy vivid blue Type IIb diamond is named after Sir Phillip Oppenheimer, a key figure in the diamond industry.
- Key details:
- Mined in South Africa’s Premier mine in 1995.
- One of the largest fancy vivid blue diamonds ever sold.
- Its rarity is due to the scarcity of blue diamonds larger than one carat.
Explore more about blue diamonds at Christie’s auction details.
4. The Blue Moon of Josephine Diamond Ring
The Blue Moon of Josephine is a 12.03-carat cushion-cut fancy vivid blue diamond ring that sold for $48.4 million in 2015. Hong Kong billionaire Joseph Lau named it after his daughter.
- Key details:
- Mined in South Africa’s Cullinan mine in 2014.
- Graded as Internally Flawless by the GIA.
- Set a record for the highest price per carat at the time of sale.
Read more about this stunning ring at Sotheby’s feature.
5. The Graff Pink Diamond Ring
The Graff Pink diamond ring, purchased by Laurence Graff for $46.16 million in 2010, features a 24.78-carat fancy intense pink diamond. This gem was recut to improve its clarity and color.
- Key details:
- Originally owned by jeweler Harry Winston.
- Recut to remove 25 inclusions, resulting in a 23.88-carat flawless diamond.
- Set in platinum with shield-shaped side diamonds.
Discover more about the Graff Pink at La Patiala’s article.
6. Grace Kelly’s Engagement Ring
Grace Kelly’s iconic engagement ring from Prince Rainier III of Monaco is now valued at $44.3 million. The 10.48-carat emerald-cut diamond is flanked by two baguette-cut diamonds.
- Key details:
- Commissioned by Cartier in 1956.
- Originally cost $4 million, now part of the Grimaldi collection.
- A timeless symbol of royal elegance.
See more about celebrity rings at Brides’ feature.
7. The Bleu Royal Diamond Ring
The Bleu Royal diamond ring, sold for $43.8 million in 2023, features a 17.61-carat pear-shaped fancy vivid blue diamond. This rare gem was part of a private collection for nearly 50 years.
- Key details:
- Set in platinum and 18K rose gold with pear-shaped side diamonds.
- Exceeded its estimated sale price of $35 million.
- One of the largest blue diamonds to appear at auction.
Learn more at Christie’s auction page.
8. The Eternal Pink Diamond Ring
The Eternal Pink diamond ring, sold for $34.8 million in 2023, features a 10.5-carat cushion-cut fancy vivid purplish-pink diamond. Mined in Botswana, this gem is celebrated for its intense color saturation.
- Key details:
- Cut from a 23.78-carat rough diamond.
- Accompanied by a GIA letter highlighting its rarity.
- Set with trapezoid-cut colorless diamonds.
Explore more at Sotheby’s feature.
9. The Pink Promise Diamond Ring
The Pink Promise diamond ring, sold for nearly $32 million in 2017, features a 14.93-carat oval-shaped fancy vivid pink diamond. Recut from a 16.21-carat rough, this gem is set in platinum with a pavé diamond halo.
- Key details:
- Purchased by jeweler Stephen Silver in 2013.
- Improved color grade after recutting.
- A standout piece at Christie’s Hong Kong auction.
Read more at Christie’s auction details.
10. The Laguna Blu Diamond Ring
The Laguna Blu diamond ring, sold for $25.7 million in 2023, features an 11.16-carat pear-shaped fancy vivid blue diamond. Originally set in a Bulgari ring, it was later redesigned into a necklace for the Met Gala.
- Key details:
- Part of a private collection for over 50 years.
- Worn by Priyanka Chopra Jonas at the 2023 Met Gala.
- A rare example of unmodified pear-shaped blue diamonds.
Discover more at Sotheby’s official page.
Final Thoughts
The costliest diamond rings are more than just jewelry—they are masterpieces of nature and craftsmanship. From the Pink Star to the Laguna Blu, these rings represent the pinnacle of luxury and rarity. No matter if you're dreaming of owning one or simply admiring their beauty, these rings are a testament to the enduring allure of diamonds. For more inspiration, explore the links provided and dig in to the fascinating world of high-end jewelry.