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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.
26 de nov. de 2019 · Precious stones were hard, rare, and valuable. The only "precious" gemstones are diamond, ruby, sapphire, and emerald. All other quality stones are called "semiprecious," even though they may not be any less valuable or beautiful.
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.
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.
What Are the Four Precious Gemstones? This is the considered the most definitive precious stones list: Diamond: Transparent, pure carbon gem in any color. Ruby: Transparent red corundum. Sapphire: Transparent non-red corundum, traditionally blue. Emerald: Transparent to translucent green beryl.
6 de mai. de 2024 · Precious stones, also known as precious gemstones and precious gems, are naturally occurring minerals that possess notable beauty, rarity, and durability. Traditionally, only four gemstones in the world are considered precious: diamonds, sapphires, rubies, and emeralds.
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure. Green Gemstones - emerald, peridot, jade, tsavorite, chrome diopside, chrysoprase, more. Mined in America - Small mines in the United States produce a diversity of beautiful gemstones.
As gemas são descritas e classificadas através de diferentes especificações técnicas. Em primeiro lugar vem a sua composição química. Os diamantes, por exemplo, são constituídos por carbono (C), os rubis e safiras, por óxido de alumínio (Al 2 O 3 ).
6 de mai. de 2020 · These stones are highly sought after by museums and collectors. Other valuable gemstones are attainable with the right amount of money. This list includes 10 rare and valuable gemstones, along with origin information, buying tips, and more.
