GIA - Gemological Institute of America
GIA is the world's most prestigious training and assessment institute for diamonds, gems and pearls. GIA's “4Cs” and International Diamond Grading System are the most popular, reputable and worldwide standards for evaluating diamond quality. The world's most respected jewelry retailers, museums, auction houses and private collectors rely on GIA-trained experts to evaluate, grade, and inspect their gemstones. . They recognize the importance and absolute confidence in the complete, unbiased, scientific information in gem evaluation provided by GIA.
Continue reading