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.

Browse our gemstone list with names, colors, and types of gems. Explore natural gems like ruby and sapphire at GemSelect for jewelry or collecting.

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.

Emerald is the most popular green gemstone in the United States and most of the world.

Discover everything about amethyst gemstones — from their meaning and ... Ametrine is a variety of quartz that displays bands of both amethyst p... Ammolite is a rare, iridescent, gem-quality material …

Jan 8, 2026 · Explore our complete A to Z gemstone guide with 30+ precious and semi-precious stones. Discover properties, meanings, healing benefits, and zodiac associations for each gemstone.

Jul 8, 2021 · 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 …

Dec 26, 2025 · Gemstone, any of various minerals highly prized for beauty, durability, and rarity. A few noncrystalline materials of organic origin (such as pearl and amber) also are classified as gemstones.

On this page, you’ll find detailed explanations of how both common and rare gemstones form, what minerals they are made of, where they occur, what optical and physical properties they have, and …

Garnet January’s Garnet is celebrated as a symbol of protection, friendship, and new beginnings. Known as the “traveler’s stone” in folklore, it’s long believed to guard against harm and negativity—making it …