
The Gemological Institute of America (GIA) is the world's premier nonprofit institute of gemological research and learning. GIA developed the International Diamond Grading System - the four Cs (Color, Clarity, Cut and Carat Weight) - to objectively compare and evaluate diamonds
Wellington is proud to not only sell GIA certified stones, but to have a staff that has received GIA Education. Thomas Whisnant, the president and owner of Wellington, is a Graduate Gemologist of the GIA, a degree which gives him international distinction as an expert on gem quality.