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. …

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

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.

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.

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 & …

Dec 26, 2025 · 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, …

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. …

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Traditionally, the term “precious gemstones” refers to four iconic stones: diamond, ruby, sapphire, and emerald. For thousands of years, these gems have symbolized wealth, status, and power.