Since antiquity, gemstones have been an integral part of jewellery. And today, they are still prized for their unique character and intrinsic (...)

Burma turns out the reddest, cleanest rubies in the world, but other, less fraught locales are catching on. Short Story...

In 1989, Brazilian miners in the state of Paraíba discovered a new variety of copper-bearing elbaite tourmaline prized for its singular neon blue. Short (...)

The epitome of green, this classic colored stone dates back to the 16th century, when it was all the rage among the maharajas. Short (...)