The official website of the GIA (Gemological Institute of America) is the source of information on the international standard-setting body for gemology. In addition to detailed explanations of the 4C evaluation criteria for diamonds, the site provides academic content on gemological processing techniques and grading methods. The site also offers a wide range of publicly available research papers and information on gemologist training courses.
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Bulbul's Danish site provides information on the home of the Nordic handmade jewelry brand. Motivated by nature's organic forms [...].