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.

GIA’s Gem Encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page features additional detailed gemological …

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.

Jun 9, 2025 · An alphabetical list of precious and semiprecious gemstones, complete with photographs and a look at their chemical composition.

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.

Jun 9, 2020 · The standard four precious gemstones aren’t the only beautiful gems. Plus, plenty of semi-precious stones are more valuable! Learn every precious and semi-precious gemstone …

Precious stones are defined as visually appealing gemstones created from rocks or minerals. Often used for jewelry and fashion accents, this term was created in the mid-1800’s to refer to …

May 6, 2024 · Precious stones, also known as precious gemstones and precious gems, are naturally occurring minerals that possess notable beauty, rarity, and durability. Traditionally, …

Oct 17, 2025 · Everything about precious gemstones including diamonds, rubies, sapphires, and emeralds and origins, properties in this expert guide!

Nov 12, 2020 · Only four stones are considered “precious”: sapphires, diamonds, rubies, and emeralds. These four precious stones have historically been the priciest and most valuable …