Amethyst Gemstone | Amethyst Stone - GIA
Amethyst Gemstone is the purple variety of the Quartz mineral. Amethyst’s purple color can range from a light lilac to a deep, intense royal purple, and from brownish to vivid.
Amethyst Gemstone | Amethyst Stone - GIA
Amethyst Gemstone is the purple variety of the Quartz mineral. Amethyst’s purple color can range from a light lilac to a deep, intense royal purple, and from brownish to vivid. Gem Encyclopedia
Amethyst History and Lore - GIA
Amethyst is the birthstone for February and one of the emblems of the twelve apostles. Learn More About Amethyst Explore amethyst history, research, quality factors, and more in the GIA …
GIA Gem Encyclopedia | Complete List Of Gemstones
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 …
Amethyst Quality Factors - GIA
Amethyst is available in all size ranges for setting into a variety of jewelry styles. It’s popular as a large center stone since the price per carat does not rise dramatically with larger size. …
Amethyst Description - GIA
Amethyst is the purple variety of the quartz mineral species. It’s the gem that’s most commonly associated with the color purple, even though there are other purple gems such as sapphire …
Amethyst Care and Cleaning Guide - GIA
Common substances like sand and dust are composed mostly of quartz, the mineral species that includes the purple variety amethyst. So, while amethyst is a great gemstone for use in …
Amethyst - Gemological Institute of America
Amethyst is a gem with purple coloring that many people find very beautiful. It is the purple variety of the mineral quartz. It was as valuable as ruby and emerald until the 1800s when more …
February Birthstone | Amethyst Birthstone Source & Meaning - GIA
Amethyst, the February birthstone, is the purple variety of quartz. It is said to prevent drunkenness and make you quick witted in business. You once had to be rich to own this birthstone for …
Amethyst from Boudi, Morocco | Gems & Gemology - GIA
2015年8月3日 · The best crystals exhibit purple flashes with a red tinge. Faceting this deeply colored material can reveal strong red overtones; these stones are known in the trade as …