Miraculous Discovery: ‘Africa-Shaped’ Blue Diamond Found in South Africa Could Fetch $69M
By Lions Roar News Science & World Desk
PRETORIA, SOUTH AFRICA (Friday, January 16, 2026) — One of the world’s most exceptionally rare blue diamonds has been unearthed at the legendary Cullinan Mine in South Africa. Weighing nearly 42 carats, the rough gem is expected to reach a staggering price of up to NZ$69 million (approximately LKR 12 billion) when it hits the auction block.
In a stunning twist of nature, experts have noted that the rough stone’s natural silhouette bears a striking resemblance to the map of the African continent.
💎 What Makes a Blue Diamond So Special?
Blue diamonds are considered geological miracles, forming under conditions vastly different from standard clear diamonds:
- Extreme Depths: These gems form at incredible depths of between 595km and 692km—far deeper than most diamonds. They are eventually pushed toward the Earth’s surface by intense volcanic activity.
- The Boron Secret: The diamond’s coveted blue or greyish tint comes from trace amounts of boron. This element absorbs red, orange, and yellow light, reflecting back the brilliant blue spectrum that makes them so prized by collectors.
- Unmatched Rarity: Because they require such specific chemical and geological conditions, blue diamonds represent only a tiny fraction of a percent of all diamonds mined globally.
📍 The Legacy of the Cullinan Mine
The Cullinan Mine is world-renowned as the source of the largest and most valuable diamonds ever found, including those featured in the British Crown Jewels. This latest 42-carat discovery reinforces the mine’s reputation as the primary source of the world’s most significant blue stones.
