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Há 3 dias · GIA is the world’s foremost authority on diamonds, colored stones, and pearls. Learn about its history, research, education, and quality standards in gems and jewelry.
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Established in 1931, the Gemological Institute of America...
- GemKids For Educators
Outdoor School: Rock, Fossil, and Shell Hunting. The...
- Solid Laboratory-Grown Single-Crystal Diamond Ring
Carved single-crystal diamond rings are rare, with few...
- India Gem & Jewellery Show
Trade Show India Gem & Jewellery Show – GJS. September 30 -...
- Bharat Diamond Week 2023
Trade Show Bharat Diamond Week 2023. October 2 - 4, 2023...
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Há 3 dias · Learn from the world’s foremost authority in gemology at GIA campuses around the world. Choose from gemology, jewelry, or design programs and pursue your passion in gems and jewelry.
Há 1 dia · 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.
Há 2 dias · Emerald is the green to bluish green variety of beryl, a mineral species that also includes aquamarine as well as beryls in other colors. Gem experts differ on the degree of green that makes one stone an emerald and another stone a less-expensive green beryl.
2 de nov. de 2023 · 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 4 dias · 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 · Press Releases. (PRESS RELEASE) NEW YORK, NY — The International Gemological Institute (IGI) announced the appointment of veteran industry leader Tiffany Stevens to lead its North American business as Chief Business Officer and Head of Sustainability for North America. Stevens succeeds Avi Levy, President of IGI North America since 2019.
