"…Every diamond should come with a grading certificate from an accredited gemmological laboratory; the jewellers we talked to agree that the Gemological Institute of America, an independent non-profit organisation, is the most trustworthy."

The Wall Street Journal


Armando Medina, President of Medina Jewelers, is a GIA Graduate Gemologist. He handles all our appraisals and applies the techniques and principles of the Institute to every piece.