sapphires, and emeralds continue to qualify as "precious." (At one time, amethyst was also considered a precious gem, but large reserves were later found in Brazil, reducing its value.) ...

While most people think of blue gemstones when they think of sapphires, the truth is that these gems can be found in a wide range of colors. Blue, pink, purple, orange, and yellow sapphires are ...

A rare Medieval bishop's ring found by a retired firefighter in a Norfolk field is expected to fetch up to £18,000 at auction ...