Sapphire is one of the most important gemstones in the world along with ruby, emerald and diamond. Its composition based on aluminum, titanium and iron makes its color usually blue, although there are also red and even yellow sapphires. Zafiro's main deposit is in Africa and South America. You have all the information in: «List of the most precious rocks and minerals on the planet«.
You have all the information in: "List of the most precious rocks and minerals on the planet".