From Tanzanite to Benitoite, this article unveils the five rarest gemstones in the world that hold more than vibrant colors.

These gems are found in three different types, differentiated by their color: Red, Blue, and Green. The Isles have many gems on the map, but each type of gem is found in a specific place in Ark ...

A Thai cleaner working for a Saudi prince took the gems in 1989. A rare 50 carat blue diamond was never recovered. Three Saudi diplomats were shot dead in Bangkok following the theft. Several top ...