The Legendary Moussaieff Red Diamond

The World's Rarest Red Diamond

Introduction

The Legendary Moussaieff Red Diamond stands as the world’s largest known internally flawless red diamond. Graded as a "Fancy Red" by the GIA—a distinction held by fewer than 30 diamonds in history—it weighs an exceptional 5.11 carats. This rare gemstone epitomizes perfection, rarity, and mystery in the world of fine diamonds.

Estimated Value

This priceless jewel is valued at over $20 million USD, not only for its breathtaking color and clarity but also for its unparalleled provenance. It is considered one of the most valuable red diamonds ever discovered.

Diamond Specifications

Carat Weight: 5.11
Color Grade: Fancy Red (Extremely Rare)
Cut Style: Triangular Brilliant (Trilliant)
Clarity Grade: Internally Flawless
Origin: Brazil
Type: Natural Fancy Colored Diamond

Current Ownership

The diamond is currently owned by Moussaieff Jewellers Ltd., a prestigious luxury jeweler headquartered in London. Renowned for acquiring rare and exquisite gems, Moussaieff continues to showcase only the most exceptional stones in the world.

Discovery & Cutting

Unearthed in the 1990s by a Brazilian miner, the rough diamond originally weighed 13.9 carats. It was masterfully cut by the William Goldberg Diamond Corporation in New York. Initially called the “Red Shield”, the gem was later renamed after being acquired by Moussaieff, marking its place in history.

Historical Timeline

1990s: Discovered by a local artisan in Brazil

Cutting: Executed by William Goldberg Diamond Corp.

Original Name: Known initially as the Red Shield

Acquisition: Purchased and renamed by Moussaieff Jewellers

Present Day: Kept in private ownership; rarely seen in public view

Want to Learn More?

Explore detailed stories on our Blog.