888.88-Carat Infinity Black Diamond Unveiled in Dubai: Dubai has unveiled an extraordinary natural black diamond weighing 888.88 carats, bringing a remarkable gemstone with a history spanning nearly five decades into the spotlight. Named Infinity, the diamond was presented by Diamond Trading NV at the Dubai Diamond Conference on October 26, 2026.

But its enormous size is only part of the story. The stone began as a 1,138-carat rough diamond acquired in 1975 and underwent cutting and polishing between 2022 and 2024. Its journey raises several questions, including how much it could be worth, where it originated and whether it holds a world record. Source: DMCC

How Much Is the 888.88-Carat Infinity Diamond Worth?

One of the biggest unanswered questions is the diamond's price. No official valuation or confirmed sale price was disclosed in the public reports following its Dubai unveiling.

Its value cannot be calculated reliably from weight alone. The stone's natural characteristics, rarity, documented history, craftsmanship and potential demand from collectors may all influence its valuation.

For now, any specific price circulating without a credible, attributable valuation should be treated with caution.

Where Did the Infinity Black Diamond Come From?

The diamond originates from the Democratic Republic of the Congo (DRC). Its story began in 1975, when Andrew Coxon acquired the original 1,138-carat rough stone on behalf of De Beers.

In 2013, the Gemological Institute of America (GIA) examined the rough crystal and documented it as the largest single-crystal natural diamond it had examined and reported on up to that time.

The stone was subsequently cut and polished between 2022 and 2024, resulting in the finished 888.88-carat Infinity diamond. It is now owned by Antwerp-based Diamond Trading NV, according to published reporting.

From its acquisition in 1975 to its finished form, the diamond's journey spans approximately 49 years.

Is Infinity the World's Largest Certified Natural Diamond?

The distinction requires careful explanation.

GIA's documented record relates to the original 1,138-carat rough diamond examined in 2013. It does not automatically establish that the finished 888.88-carat Infinity is the world's largest polished natural diamond.

The Dubai unveiling established the stone's extraordinary size and identity, but the available public documentation does not independently confirm a separate world-record certification for the finished diamond.

This distinction matters because a rough diamond and a polished diamond are different categories when comparing records.

888.88-Carat Infinity Black Diamond Unveiled in Dubai: Why Is the Infinity Diamond Black?

Infinity is classified as a natural Fancy Black diamond. Natural black diamonds can acquire their appearance through geological features, including dense mineral inclusions such as graphite and other structural characteristics.

According to Daniel de Belder of Diamond Trading NV, the stone retains features associated with its journey from deep within the Earth to the surface. Its cutting approach was adapted to the stone's natural characteristics rather than attempting to erase every trace of its geological history.

The precise scientific explanation for Infinity's colour should be based on its individual gemological documentation rather than assumptions about all black diamonds.

Why Was the Rare Diamond Unveiled in Dubai?

The unveiling took place during the seventh Dubai Diamond Conference, organised by the Dubai Multi Commodities Centre (DMCC).

The conference brought together international diamond producers, traders, retailers, investors and other industry representatives to discuss the future of natural diamonds, consumer demand and new investment opportunities.

Dubai's role in the sector is significant. According to DMCC, the emirate recorded US$41.7 billion in diamond trade in 2025, with natural diamonds accounting for 95.8% of the total trade value.

Infinity's presentation therefore highlighted not only an exceptional gemstone but also Dubai's position in the international diamond trade.

Can You See the Infinity Diamond in Dubai?

The diamond was displayed at the Dubai Diamond Conference on October 26, 2026. Its presentation gave industry representatives an opportunity to view the rare stone in person.

However, a public exhibition schedule or confirmation that the diamond will remain available for general visitors has not been established in the reports reviewed. Anyone planning a visit should check with the event organisers before travelling specifically to see it.

What Makes Infinity Different From Other Black Diamonds?

Its combination of size, history and craftsmanship distinguishes it from an ordinary black diamond.

The finished stone weighs 888.88 carats, while its original rough form weighed 1,138 carats. Its history stretches back to 1975, and its transformation required cutting and polishing over the 2022–2024 period.

Its documented connection to GIA's examination of the rough crystal adds another important layer to its story. Nevertheless, its exact market value and any broader world-record claim should not be stated beyond what the available evidence supports.

The Infinity diamond's Dubai debut offers a rare glimpse into the journey of an exceptional natural gemstone. Its price remains undisclosed, but its decades-long history and remarkable size have already made it a notable story in the international diamond industry.