Do you know that the world's largest rubies, sapphires and other invaluable gems are all available directly on the Internet? You can buy the Raviratna, world's largest star ruby cut like a ...

There are a number of semiprecious gems, many quite beautiful, but diamonds, rubies, sapphires, and emeralds continue to qualify as "precious." (At one time, amethyst was also considered a ...

Rubies are mainly made up of the mineral corundum ... You can take delight in the amazing colors of the gemstones, but through chemistry, you can also see how nature creates those colors using ...

Gemstones are valued based on the Four Cs - color, clarity, cut, and carat. Precious stones include diamonds, sapphires, rubies, and emeralds. Semi-precious stones are evaluated on their rarity and ...

Gemstones, including rubies, emeralds, and sapphires, can be sold for cash, much the same as diamonds and other jewelry. However, more often than not, those stones have very little resale value ...

Rubies and emeralds have the colors they do because, like many substances, they absorb some colors of light. Most visible light, like sunlight, is composed of all the colors of the rainbow: red, ...

These five tips will keep your gems brilliant for decades, whether it’s a diamond engagement ring, a pearl necklace, or a ...