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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.
Gemstone. 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. 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 ...
GIA’s Guide to Gemstones: Gem Encyclopedia. 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. Filter By Country. View Gems as.
A gemstone is a crystalline mineral that can be cut and polished to make jewelry and other ornaments. The ancient Greeks made a distinction between precious and semiprecious gems, which is still used. Precious stones were hard, rare, and valuable. The only "precious" gemstones are diamond, ruby, sapphire, and emerald.
Nowadays, any gemstone that isn’t one of the traditional four precious gems is typically considered semi-precious. Which semi-precious stone is most valuable? From current lists of the most valuable gemstones, second place (just under blue diamond ) goes to the highest-quality jadeite at $3 million per carat.
These are the planet’s most valued gems. Diamond. Diamonds are among nature’s most precious and beautiful creations. Emerald. Emerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine. Citrine. Citrine is the transparent, pale yellow to brownish orange variety of quartz. View the Gem Encyclopedia.
Gemstone Meanings & Crystal Properties. Learn all about healing gemstones with this comprehensive list of stones and their meanings. 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.
Engagement rings set with the “Big Four” precious gemstones: diamond, sapphire, emerald, and ruby. Fascination with precious stones transcends geographical and historical boundaries. From Ancient Greece and Rome to the empires of Asia and the New World, humans have valued diamonds, sapphires, rubies, and emeralds for thousands of years.
Average Price Per Carat: $3,500. Black opal is the rarest and most popular type of opal. It is also considered among the rarest of all gemstones. Almost all of the world's supply of black opal is mined in Lightning Ridge in New South Wales, Australia.
Vivianite. 1.5 - 2. 214. Zircon. 6.5 - 7.5. 373. List of precious and semi-precious gemstones: With over 200 gemstone varieties, our gemstone index will help you find the perfect colored stone for your needs. The most complete gemstones list online.