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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.
In modern use, the precious stones are emerald, ruby, sapphire and diamond, with all other gemstones being semi-precious. This distinction reflects the rarity of the respective stones in ancient times, as well as their quality: all are translucent , with fine color in their purest forms (except for the colorless diamond), and very ...
Explore the science and lore of gemstones from across the globe with GIA's Gem Encyclopedia. Find detailed information, photos, videos and buyer's guides for each precious stone.
26 de nov. de 2019 · Learn about the chemical, physical, and crystal properties of various gemstones, from diamond to zircon. Find out which ones are considered precious and which ones are semiprecious, and see examples of each.
- Anne Marie Helmenstine, Ph.D.
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 · Learn about the characteristics, colors, and alternatives of diamonds, sapphires, rubies, and emeralds, the four gemstones that are traditionally considered precious. Find out why they are valued for their beauty, rarity, durability, and symbolism.
Find over 200 gemstone varieties with pictures and details on this web page. Learn about the colors, properties, sources and meanings of precious and semi-precious gemstones from A to Z.
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