Gem Encyclopedia

Sapphire: characteristics and curiosities

Among the most famous precious stones in the world, the Sapphire cannot be missed, with its blue and light blue hues, loved since ancient times and with miraculous powers. We have already met the...

Emerald: characteristics and curiosities

We have already learned about the history and characteristics of the ruby: this time we will focus on the emerald, a very important precious stone with an intense green color, much loved by Cleop...

Ruby: characteristics and curiosities

Jewelry is not only made of precious metals such as gold and silver, but also of precious stones. Among the many mineral varieties present in the world, 4 precious stones stand out with inestimabl...

Guinness World Record Mining: World's Largest Amethyst!

It is to date the largest amethyst ever mined in Uruguay: 15 whole tons of first-rate raw material worth several hundred thousand dollars. Twenty days of work to extract it without using explosives...