Sapphire is a precious gemstone and a variety of the mineral corundum, most famous...

Pearl is an organic gemstone formed inside the shells of certain mollusks, such as...

Diamond is the hardest natural substance known, formed from pure carbon under extreme heat...

Tanzanite is a rare precious gemstone and the blue to violet variety of the...

Ruby is a precious gemstone and a variety of the mineral corundum, celebrated for...

Emerald is a precious gemstone and a variety of the mineral beryl, renowned for...