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20 de mai. de 2024 · IGI is a global leader in accreditation, education and consumer protection for diamonds, gemstones and jewelry. Learn about IGI's grading reports, courses, eLearning, webinars, GemBlog and more.
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Experienced graduate gemologists conduct further assessment...
- EDUCATION
IGI's School of Gemology offers rough diamond grading to...
- Consumer Services
IGI offers expert services designed to facilitate...
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International Gemological Institute No. 136, Cears 1st...
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IGI is proud to be affiliated with the following gemological...
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Há 2 dias · 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 4 dias · Diamond Color. The color evaluation of most gem-quality diamonds is based on the absence of color. A chemically pure and structurally perfect diamond has no hue, like a drop of pure water, and consequently, a higher value. GIA's D-to-Z color-grading system measures the degree of colorlessness by comparing a stone under controlled lighting and ...
Há 6 dias · An independent nonprofit organization, GIA (Gemological Institute of America), established in 1931, is recognized as the world’s foremost authority in gemology. GIA invented the famous 4Cs of Color, Clarity, Cut and Carat Weight and, in 1953, created the International Diamond Grading System™ which is recognized around the world as the standard for diamond quality.
20 de mai. de 2024 · IGI Expressions Surges to Over 1,000 Entries from 40 Countries. 02nd Feb 2024 by Angi Butler. Behind the scenes Consumer Education Diamond 4Cs For Consumers For Professionals GemBlog.
16 de mai. de 2024 · Enter lab-grown diamonds, a revolutionary alternative that's taking the jewelry world by storm. With certifications from reputable organizations like the International Gemological Institute (IGI) and the Gemological Institute of America (GIA), these diamonds offer both beauty and peace of mind.
Há 4 dias · Cleaning your gemstone before certification is crucial to ensure it looks its best and is accurately evaluated. Start by soaking it in warm, soapy water for about 20 minutes. Use a mild dishwashing liquid for the solution. After soaking, gently scrub the gemstone with a soft toothbrush to remove any dirt or grime.
