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.

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.

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 …

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. …

Gemstones are more than just ornamental, they carry meaning, energy, and purpose. From precious stones to healing crystals, each type serves a unique role, whether for beauty, …

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 …

Articles about gemstones written by a GIA Graduate Gemologist. Each article includes photos and information about the gem's physical properties and geologic origin.

Discover the World of Gemstones. From loose gemstones to mineral specimens, expand your gemological education and explore your own gemstone journey.

Curious what your gemstones and crystals mean? Find out with our extensive list of precious and semi-precious stone meanings and properties.

gemstone, any of various minerals highly prized for beauty, durability, and rarity. A few noncrystalline materials of organic origin (e.g., pearl, red coral, and amber) also are classified …