Top 10 Biggest Carat Diamond Rings in the World

Lola Lin

Lola Lin

March 26, 2025

5 min read

Biggest carat diamond rings are the ultimate symbol of luxury and opulence. These stunning pieces of jewelry capture attention with their sheer size and brilliance. No matter if you're a diamond enthusiast or just curious about the most extravagant rings, this list will dig in to the top 10 biggest carat diamond rings in the world. From celebrity engagement rings to rare gemstones, these rings are a testament to craftsmanship and beauty.

Biggest carat diamond rings

1. The Pink Star Diamond Ring

The Pink Star Diamond Ring is one of the most famous biggest carat diamond rings in the world. This stunning piece features a 59.60-carat oval-shaped pink diamond, known for its vivid color and flawless clarity.

  • Key features:
    1. 59.60-carat fancy vivid pink diamond.
    2. Sold for a record-breaking $71.2 million.
    3. Mined in Africa and cut to perfection.

For more details, check out The Pink Star Diamond Ring.

Pink Star Diamond Ring

2. The Cullinan Diamond Ring

The Cullinan Diamond Ring is another remarkable biggest carat diamond ring. It features a 530.20-carat pear-shaped diamond, cut from the largest rough diamond ever discovered.

  • Why it stands out:
    1. 530.20-carat pear-shaped diamond.
    2. Crafted by the House of Asscher.
    3. Symbol of exceptional craftsmanship.

Learn more about The Cullinan Diamond Ring.

Grace Kelly's Engagement Ring

3. Grace Kelly’s Engagement Ring

Grace Kelly’s engagement ring is one of the most iconic biggest carat diamond rings. Given by Prince Rainier III, this 10.47-carat emerald-cut diamond ring is a timeless piece.

  • Key details:
    1. 10.47-carat emerald-cut diamond.
    2. Designed by Cartier.
    3. Worth $38.8 million today.

Explore Grace Kelly’s Engagement Ring.

Elizabeth Taylor’s Krupp Diamond

4. Elizabeth Taylor’s Krupp Diamond

Elizabeth Taylor’s Krupp Diamond is a legendary biggest carat diamond ring. This 33.19-carat Asscher-cut diamond was a gift from Richard Burton.

  • Why it’s special:
    1. 33.19-carat Asscher-cut diamond.
    2. Sold for $8.8 million at auction.
    3. One of the most famous diamonds in history.

Read more about Elizabeth Taylor’s Krupp Diamond.

Mariah Carey’s Engagement Ring

5. Mariah Carey’s Engagement Ring

Mariah Carey’s engagement ring from James Packer is one of the biggest carat diamond rings ever. This 35-carat emerald-cut diamond is a true showstopper.

  • Key features:
    1. 35-carat emerald-cut diamond.
    2. Worth $10 million.
    3. Designed by Wilfredo Rosado.

Discover Mariah Carey’s Engagement Ring.

Jackie Kennedy’s Lesotho III

6. Jackie Kennedy’s Lesotho III

Jackie Kennedy’s Lesotho III is one of the most famous biggest carat diamond rings. This 40.42-carat marquise-cut diamond was a gift from Aristotle Onassis.

  • Why it’s iconic:
    1. 40.42-carat marquise-cut diamond.
    2. Sold for $2.6 million at auction.
    3. Designed by Harry Winston.

Learn more about Jackie Kennedy’s Lesotho III.

Beyoncé’s Engagement Ring

7. Beyoncé’s Engagement Ring

Beyoncé’s engagement ring from Jay-Z is a stunning biggest carat diamond ring. This 18-carat emerald-cut diamond is worth $5 million.

  • Key details:
    1. 18-carat emerald-cut diamond.
    2. Designed by Lorraine Schwartz.
    3. Flawless clarity and brilliance.

Explore Beyoncé’s Engagement Ring.

Kim Kardashian’s Engagement Ring

8. Kim Kardashian’s Engagement Ring

Kim Kardashian’s engagement ring from Kanye West is a notable biggest carat diamond ring. This 15-carat cushion-cut diamond is flawless and rare.

  • Why it’s special:
    1. 15-carat cushion-cut diamond.
    2. Worth $2 million.
    3. Designed by Lorraine Schwartz.

Read more about Kim Kardashian’s Engagement Ring.

Blake Lively’s Engagement Ring

9. Blake Lively’s Engagement Ring

Blake Lively’s engagement ring from Ryan Reynolds is a beautiful biggest carat diamond ring. This 12-carat oval-cut pink diamond is unique and elegant.

  • Key features:
    1. 12-carat oval-cut pink diamond.
    2. Worth $2 million.
    3. Designed by Lorraine Schwartz.

Discover Blake Lively’s Engagement Ring.

Jennifer Lopez’s Engagement Ring

10. Jennifer Lopez’s Engagement Ring

Jennifer Lopez’s engagement ring from Alex Rodriguez is a stunning biggest carat diamond ring. This 15-20 carat emerald-cut diamond is flawless and eye-catching.

  • Why it stands out:
    1. 15-20 carat emerald-cut diamond.
    2. Worth $1.8 million.
    3. One of J.Lo’s most striking rings.

Explore Jennifer Lopez’s Engagement Ring.

Final Thoughts

Biggest carat diamond rings are more than just jewelry—they are symbols of love, luxury, and craftsmanship. From the Pink Star to Grace Kelly’s iconic ring, these pieces have captivated the world. No matter if you're dreaming of owning one or just admiring their beauty, these rings are a testament to the allure of diamonds. Start exploring these stunning pieces today and discover the magic of the biggest carat diamond rings.

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