Although various forms of paints and coatings intended to alter the color of diamond have likely been in use for almost as long as diamonds have been valued as gems, the modern era of diamond ...

Attain your dream of a GIA education with the help of a scholarship, grant, or loan. GIA also accepts outside sources to fund your education, including vocational rehabilitation and Veterans’ benefits ...

Natural pearls are among the rarest and most valued of fine gems. American freshwater pearls have a history thousands of years old and played a particularly prominent role in the jewelry of the late ...