What is Gemology?

Established in 1931, the non-profit Gemological Institute of America is the world’s foremost authority in gemology.

GIA's mission is to ensure the public trust in gems and jewellery by upholding the highest standards of integrity, academics, science, and professionalism through education, research, laboratory services and instrument development.

GIA is the creator of the famous 4Cs of diamond value (color, clarity, cut, and carat weight). It is also the corporate birthplace of the International Diamond Grading System™. Today, GIA’s D-Z color-grading scale and GIA’s Flawless–I3 clarity-grading scale are recognized by virtually every professional jeweller and savvy diamond buyer in the world. The Institute is also known for having developed and patented the first modern jewellers' loupe.

..is home to the prestigious Graduate Gemologist (G.G.) diploma..

The Degree

At the core of GIA’s activities is its commitment to education. The Institute is home to the prestigious Graduate Gemologist (G.G.) diploma. The distinguished G.G. designation at the end of an individual’s name is instantly recognized around the world as the mark of a senior professional in the jewellery industry.

When I studied in Los Angeles back in 1980, it was a very challenging course, with nightly reading, daily assignments, and some of the most brilliant teachers I've met.

In a way, it was a place where I could turn one of my hobbies and fascinations, gemstones, into a business, and have done very well over the years.

Now, as I embark on a new way to share the information that I have gathered, I look forward to having you along for the journey.