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.

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 …

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 & …

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 …

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

Oct 3, 2025 · 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 …