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

In its green form, however, it's beautiful enough to be considered a rare gemstone. These samples are rarely found outside of Kimberley, South Africa, but more common versions can be found in ...

The auction on Thursday totaled $30 million, with strong demand for colored gemstones, white and colored diamonds and jewels ...

Our latest charity auction on eBay Live has surprise items up for bids that combine Marvel fandom with luxurious tastes - all ...