Current Ownership and Custody of the Millennium Diamond
The Millennium Diamond remains under the control of De Beers Group as part of its permanent collection of historic stones. The stone is classified as a large, colorless, internally flawless diamond and is stored within the company's high-security vaults, with access limited to senior executives and authorized experts. De Beers has not announced any plans to sell the stone on the open market, and the diamond is not listed on any public exchange or auction schedule. The company treats the stone as a strategic asset rather than a commodity for immediate sale De Beers diamond strategy.
Ownership records indicate that the Millennium Diamond has never changed hands since its discovery, and it remains a wholly owned asset of De Beers. The stone is insured for an estimated value in the hundreds of millions of dollars, though the exact figure is not publicly disclosed. Security protocols include biometric access controls, 24/7 surveillance, and physical separation from other inventory to minimize risk. The diamond is kept in a facility that meets the highest international standards for the storage of precious gemstones SEC filings on asset disclosures.
Physical Characteristics and Grading of the Millennium Diamond
Carat Weight, Color, and Clarity
The Millennium Diamond weighs 203.04 carats, making it one of the largest top-color diamonds ever cut. It is graded as colorless by leading gemological laboratories, with a clarity grade of internally flawless, indicating no inclusions visible under 10x magnification. The stone was cut from a rough crystal discovered in the Letseng mine in Lesotho, and the cutting process was designed to maximize both size and optical performance. Its proportions and polish are considered exceptional by industry standards, and the diamond is often cited in technical analyses of large modern cuts GIA diamond grading.
Cut Style and Light Performance
The diamond features a modern brilliant cut with a high number of facets engineered to optimize brilliance and fire. The cut was supervised by master cutters and is frequently referenced in technical reports on large diamond manufacturing. The stone's symmetry and polish grades are near the top of laboratory scales, and it is used as a benchmark in discussions of cutting technology for stones above 100 carats. Gemological institutions note that the proportions fall within a narrow range that maximizes face-up brightness and contrast Gemological Institute of America.
Market Status and Public Visibility of the Millennium Diamond
Exhibition History and Display Record
The Millennium Diamond has been displayed at select industry events and exhibitions organized by De Beers and partner institutions, but it is not part of a permanent public museum collection. During these appearances, the stone is shown under strict security and controlled lighting conditions, often alongside other historic diamonds from the De Beers archive. Attendance is typically limited to invited guests, industry professionals, and accredited media, and the diamond is not available for public viewing on a daily basis. No ongoing touring exhibition has been announced for the stone Bain diamond market report.
Insurance, Valuation, and Appraisal
Industry sources estimate the insured value of the Millennium Diamond in the hundreds of millions of dollars, based on recent transactions of comparable large, high-color diamonds. The valuation relies on factors such as carat weight, color, clarity, cut quality, and provenance,