This week in science: The world's second-largest diamond is being evaluated; the genetic secrets of a 117-year-old woman are ...

Beyond diamonds, emeralds and rubies, there exists a category of stones so rare — whispered about in auctions, sought after ...

Salman Khan is a man with a growing taste for luxury, and his watches are the proof of it all. His collection is as unique ...

The world's second largest diamond could soon find a new home in a museum or a sheikh's collection—but first needs to be ...

From billion-dollar yachts to diamond watches and rare art, explore 15 of the most expensive things ever purchased by the world’s wealthiest people ...

Painite, Gold Sheen Sapphire, Red Beryl, and Musgravite. Learn why collectors value these scarce, unique stones above all ...

Rio Tinto has launched the last edition of its Beyond Rare tender, offering a final set of pink, red, violet, yellow and white diamonds from its Canadian and Australian operations. The tender, titled ...

The 'most valuable' coin in the world was designed as a commemorative collectors' item in memory of the late Queen Elizabeth ...

Smithsonian curator, Gabriela Farfan, unpacks the rarity, history and significance of the Winston Red, one of world’s most ...

Unearthed last year at Botswana’s Karowe mine, the 2,488-carat Motswedi diamond is now being analysed in Belgium. Experts say ...

Some of the most expensive modern engagement rings include Kim Kardashian's 15-carat, $8 million diamond and Mariah Carey's ...

(Web Desk) - The world's second biggest diamond could soon find a new home in a museum of a sheikh's collection – but only ...