Its rarity and flawless clarity make it one of the most exceptional diamonds ever discovered. Weighing in at 14.62 carats, the Oppenheimer Blue is the largest vivid blue diamond ever sold at auction.

With a combined net worth of over $50 billion, here’s how they made their fortunes in luxury goods, mining, and more.

If baseball’s three strikes and you’re out rule was applied to diamonds the industry would be walking back to the dugout ...