The most expensive gemstone by carat weight is the Blue Moon Diamond ... It’s the most historically complete collection of any regalia in the world and includes a whopping 23,578 stones. Perhaps the ...

Explore the world's most dazzling gemstone destinations, from Myanmar's ruby valleys to Sri Lanka's sapphire-rich lands.

A troy ounce bar of gold is worth a hefty sum of money, but the same amount of this mineral is worth over a hundred million times more.