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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 information, a buyer’s guide, photos, videos & research.
Articles about gemstones written by a GIA Graduate Gemologist. Each article includes photos and information about the gem's physical properties and geologic origin.
This is our complete guide to crystal meanings with over 100 different semi-precious stones and crystals, precious gems, minerals and their metaphysical symbolism, healing properties, powers, and spiritual meaning.
A gemstone (also called a fine gem, jewel, precious stone, semiprecious stone, or simply gem) is a piece of mineral crystal which, when cut or polished, is used to make jewelry or other adornments. [1][2][3] Certain rocks (such as lapis lazuli, opal, and obsidian) and occasionally organic materials that are not minerals (such as amber, jet, and ...
Although some are believed to have unique powers, each shares a typical beauty, distinct with a unique color, birthplace, and story. Gems come in every color of the rainbow and are gathered from all edges of the globe, with each colored gemstone possessing a one-of-a-kind production of lovely color. Explore beautiful gemstones and fine jewelry ...
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. Of the more than 2,000 identified natural minerals, fewer than 100 are used as gemstones and only 16 have achieved importance.