Sotheby’s Hong Kong held Asia’s largest ever jewelry auction yesterday.

The Oppenheimer Blue sold on Wednesday for more than $57.5 million including fees at a Christie's auction in Geneva, making it the most expensive diamond ever sold.

The most expensive diamond in the world costs US $250 million.

including the 51.38 carat diamond of the same name, the most expensive among the ones ever cut in Russia, the Russian diamond miner said on Tuesday. The starting price of the collection can be $10 ...

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The diamonds need to fall in a specific shade ... making it one of the world's most expensive gemstones. Over 90% of black opals come from Australia, but they aren't easy to find.

Earlier, he was also spotted wearing one of the most expensive limited-edition Billionaire III watches adorned with 714 diamonds from Jacob & Co. It is worth a jaw-dropping ₹41.98 crores.