Diamond is considered to be the most precious and expensive gem in the world. But if we tell you that diamond is not the most expensive and rare gem in the world, will you believe it? But this is true ...

The world’s most expensive substances command their prices for very different reasons. Some, like rare gemstones, are ...

From Princess Diana's engagement ring to the Star of India, the September birthstone has lived up to its legendary reputation as one of the world's four major precious gemstones. Best known for its ...