Hundreds of years ago, it was referred to as sea-green beryl. The first evidence of it being called aquamarine was back in ...

Known for its deep red hue, rubies are highly prized and valued at around $4,625 per carat. One of the hardest and most sought-after gemstones, diamonds cost approximately $9,502.13 per carat. A light ...

In the world of gemmology, the South American country of Brazil plays host to a variety of precious gemstones.