Archaeologists at the Constantine the Philosopher University in Nitra, Slovakia, recently began examining a rare 700-year-old gold ring discovered over two decades ago near Zvolen. The ring, initially ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The purple sapphire ring is shown from above and from below, along with a detail of the lion. | ...

We’ve already looked at pearls, so let’s continue on with one of my personal favorite gemstones, the sapphire. Often ranked in the top most popular gemstones, sapphires are mostly known for their more ...