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Há 1 dia · We offer the finest gem and jewelry education in the world with curriculum developed from our groundbreaking research and delivered by the industry’s leading experts. GIA gives you the knowledge and practical skills to translate your love for gems and jewelry into a rewarding career.
- UK
GIA CAMPUSES ARE WORLDWIDE. With schools in major gem and...
- Alumni
GIA Library. Richard T. Liddicoat Gemological Library &...
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Schedules. GIA programs and courses are offered year-round...
- Financial Assistance & Scholarships
Financial Assistance & Scholarships. Attain your dream of a...
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The American Chemical Society’s (ACS) Committee on Chemical...
- Admissions Requirements and General Admissions Policy
Admissions Requirements. Applicants must have a high school...
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Upon request, GIA is pleased to discuss these tasks with you...
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As an educational institution subject to Title IX,...
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Há 1 dia · Established in 1931, the Gemological Institute of America (GIA) is the world’s foremost authority on diamonds, colored stones, and pearls. A public benefit, nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry.
Há 3 dias · 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 and tanzanite. Its purple color can be cool and bluish, or a reddish purple that’s sometimes referred to as “raspberry.”. Most people think of ...
Há 4 dias · GIA 4Cs Carat Weight. Diamonds and other gemstones are weighed in metric carats: one carat is equal to 0.2 grams, about the same weight as a paperclip. (Don’t confuse carat with karat, as in “18K gold,” which refers to gold purity.) Just as a dollar is divided into 100 pennies, a carat is divided into 100 points.
Há 1 dia · Evaluating diamond clarity involves determining the number, size, relief, nature, and position of these characteristics, as well as how these affect the overall appearance of the stone. While no diamond is perfectly pure, the closer it comes, the higher its value.
Há 5 dias · About. Diamond Cut. Diamonds are renowned for their ability to transmit light and sparkle so intensely. We often think of a diamond's cut as shape (round, emerald, pear), but a diamond's cut grade is really about how well a diamond's facets interact with light.
Há 1 dia · Alexandrite Description. This 7.19-carat alexandrite was cut to feature its beautiful color change. When the light source changes from daylight to incandescent light, the gem’s color changes from bluish green to reddish purple. Alexandrite, with its chameleon-like qualities, is a rare variety of the mineral chrysoberyl.
