Group of precious and semiprecious stones—both uncut and faceted—including (clockwise from top left) diamond, uncut synthetic sapphire, ruby, uncut emerald, and amethyst crystal cluster. A gemstone …

Gem Encyclopedia is a virtual journey through the science and lore of Gemstones from across the globe. Each Gem page features Gemological Information, a Buyer’s guide, photos, videos & research.

Feb 26, 2024 · Kidney stones are small, hard crystals that form in your urinary tract. But how can something so tiny cause so much pain? Learn more.

Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States.

Gemstone List: A Complete Gemstones List with Images. Our gemstone list features over 200 precious and semi-precious varieties, a comprehensive index to find the ideal colored stone. Whether for …

New to gemstones? Curious about the different kinds of gemstones? Check out our gemstones list and discover a world of precious and semi-precious stones.

Dec 18, 2025 · The Rolling Stones have opted out of a stadium tour in the U.K. and Europe.

Apr 13, 2023 · Gemstones have played numerous roles in the myths and tales of human societies throughout history. Although some are believed to have unique powers, each shares a typical …

Of the more than 2,000 identified natural minerals, fewer than 100 are used as gemstones and only 16 have achieved importance. These are beryl, chrysoberyl, corundum, diamond, feldspar, garnet, jade, …

Learn about the stone’s meaning and uses in this complete guide! Coral is a white, red, or pink organic material called “Precious coral” as a gemstone. Among the oldest gems, jewelry uses go back …