Gemstones have been a topic of fascination to human beings for centuries, not just for their beauty, but also for how rare ...

This 140.64-carat diamond was once part of the French Crown Jewels and has adorned figures like Louis XV and Napoleon ... making it one of the most famous diamonds on public display.

the Portuguese Diamond, the Hooker Emerald — evoke both the grand realm of history and the dark world of the modern mystery novel. But the most famous of all the gems — not the biggest ...

While this gemstone is well-known for its colorless or white variety, there are colored diamonds, such as the famous Hope diamond. Diamonds can also come in black, blue, green, pink ...