Gemstones are valued based on the Four Cs - color, clarity, cut, and carat. Precious stones include diamonds, sapphires, ...

The cost of the new rarest mineral in the world remains a mystery. However, its predecessor, which was listed in the Guinness World Records as the rarest mineral on Earth — painite — costs ...

The Unparalleled Rarity of Gold Sheen Sapphire Gold Sheen Sapphire is recognized as one of the rarest gemstones on Earth, with its discovery marking a significant milestone in the gem industry. Only a ...