Fifty years have elapsed since the recovery of the world’s largest octahedral diamond, a remarkable 616-carat Type 1 yellow diamond. Originating from the Dutoitspan Mine in Kimberley, South Africa, the diamond remains untouched, unpolished, and unsold, preserving its legacy spanning generations.
Discovered on April 17, 1974, by De Beers employee Abel Maretela, the diamond’s find led to significant rewards for Maretela, including a substantial bonus and a house. Al Cook, CEO of the De Beers Group, had the privilege of viewing the diamond during a visit to Johannesburg, hosted by Moses Madondo, CEO of De Beers Group managed operations. Cook expressed his fascination with diamond history, highlighting the Type 1 classification of the diamond, indicating its formation deep within the Earth’s mantle over a billion years ago.
The diamond’s striking yellow hue, attributed to trapped nitrogen atoms, further adds to its allure, offering a glimpse into Earth’s geological history.
Photo credits: De Beers
Disclaimer: Jewel Bharat aims to provide accurate and reliable information. Readers are encouraged to contact@jewelbharat.com to report any concerns regarding the content. Appropriate corrective measures, including potential removal of the article from the website, will be taken following investigation.
Related Coverage
Botswana and Angola Join WFDB as Nation Affiliate Members at recently concluded WFDB Summit
GSI and Bharat Ratnam Mega CFC Advance Colored Gemstone Education Through Industry-Focused Masterclass
GJEPC Leadership Meets Maharashtra Chief Minister Shri Devendra Fadnavis to Discuss Key Industry Priorities
Natural Diamond Council successfully challenges misleading ads by synthetic diamond retailers
Shri Kirit Bhansali has been appointed as the Nominee Director on the IAGESBoard, effective 11 May 2026.







