Famous Rare Diamonds
of the World
Thirty-one diamonds that define what rarity means — from a $71.2 million auction record to crown jewels that passed between empires, to modern discoveries that show the diamond world is as dynamic as ever.
Auction Record Holders
The eleven diamonds that have commanded some of the highest prices ever paid at public auction — led by blue and pink stones, a reminder that color is a major driver of value. From the $71.2 million CTF Pink Star to the Chloe Diamond, these stones sit where extreme rarity meets fierce competition among collectors.
Explore Part I →Legendary & Crown Jewel Diamonds
Ten diamonds whose stories span centuries and continents — from the Hope Diamond and its legend of a curse, now at the Smithsonian, to the contested Koh-i-Noor on display at the Tower of London, to the Cullinan, whose rough yielded Cullinan I and II, among the largest polished colorless diamonds in the world. Their provenance intertwines with empires, revolutions, and the rise and fall of dynasties.
Explore Part II →Modern Era Discoveries (2005–2025)
Ten diamonds that show the market is not a museum — extraordinary stones are still being unearthed, cut and sold. From the Lesedi La Rona (1,109 carats rough, found at Botswana's Karowe mine in 2015 — the largest diamond found in over a century at the time, and still one of the ten largest rough diamonds ever recovered) to the Eternal Pink (sold for $34.8 million in 2023), these entries show why rare diamonds continue to draw strong collector interest.
Explore Part III →"These stones teach us something no textbook can — that rarity is not one attribute. It is the convergence of color, purity, size, cutting, and provenance into something genuinely irreplaceable."— Brian Gavin, Fifth-Generation Diamantaire
Color Dominates Value
Most of the top prices in Part I were achieved by blue or pink diamonds — two of the rarest fancy colors. The 5.11-carat Moussaieff Red, graded Fancy Red — the rarest color of all — is one of the most famous red diamonds known despite its modest size. See how GIA grades fancy color.
Type Classification Is a Common Thread
Many diamonds on this list are Type IIa or Type IIb — the most chemically pure categories, together estimated at only about 1–2% of natural diamonds. The Hope, Wittelsbach-Graff, De Beers Blue and Blue Moon are Type IIb. The Cullinan, Lesedi La Rona and Spirit of the Rose are Type IIa, and the Archduke Joseph is reported as Type IIa. Type alone never proves natural origin — that is confirmed separately by the grading laboratory.
Golconda Origins Carry Lasting Prestige
India's historic Golconda region is the source of the Hope Diamond, the Regent, the Sancy, the Wittelsbach-Graff, the Princie, the Archduke Joseph, the Orlov and the Daria-i-Noor, and tradition places the Koh-i-Noor there too. Those mines were largely worked out centuries ago, so no new Golconda diamonds are coming to market. Golconda origin itself is usually inferred from a stone's Type IIa character and documented history rather than proven by a laboratory.
Expert Cutting Transforms Value
Laurence Graff's controversial recutting of both the Wittelsbach and the Graff Pink improved their grades. Gabi Tolkowsky's cutting of the Golden Jubilee and the Centenary turned difficult rough into world-class diamonds. Diacore's months-long work on the Eternal Pink gave up more than half the rough's weight to reach Fancy Vivid purplish pink. Cut quality is the human factor that can unlock — or waste — a diamond's potential; it is the heart of our cutting services.
Remarkable Stones Keep Appearing
The Eternal Pink (2023) and the Graff Lesedi La Rona, polished from its 1,109-carat rough and unveiled in 2019, show that extraordinary diamonds are still being found, cut and sold. The same Karowe mine in Botswana has since produced even larger rough, led by the 2,492-carat Motswedi recovered in 2024 — second only to the 3,106-carat Cullinan. The closure of the Argyle mine in 2020 — the source of about 90% of the world's pink diamonds — makes every significant new pink more notable. For how collectors approach these stones, see our investment guide.
Begin Your Journey
The thirty-one diamonds in this guide span seven centuries and several continents. While most are beyond private acquisition, the principles they embody are the same principles we apply when sourcing diamonds for serious collectors.
Schedule a Private Consultation