We are extremely fortunate to have 2 outstanding jewelers working for us at K.Hollis - Bruce Feddema and Martha Nilles. The are not just highly educated, experienced and trustworthy; they are outstanding human beings and talented artists (just Google Bruce Feddema and you'll find all sorts of wonderful creations!).
Both Martha and Bruce are well educated, have decades of bench experience, and have earned a Graduate Gemologist degree from GIA (Gemological Institute of America Inc.). GIA is the "Gold Standard" in the jewelry industry for Diamond Grading ("GIA Diamond Reports" aka Certificates) and education programs. The Graduate Gemologist program is an intensive 6-month program offered in Carlsbad, California and currently costs over $22,000 just for tuition. It is the most prestigious credential in the industry. The GIA Graduate Gemologist program provides a comprehensive knowledge of diamonds and colored stones that teach both technical expertise and practical skills to evaluate gemstones by the 4Cs (color, clarity, cut, and carat weight), the International Diamond Grading System™, and the Colored Stone Grading System.
GIA provides diamond grading analysis services that produces a GIA Diamond Grading Report. The report describes an assessment of the 4Cs – Color, Clarity, Cut, and Carat Weight – by the GIA diamond grading lab along with a plotted diagram of the diamond's clarity characteristics and a graphic representation of the diamond’s proportions. This report is often referred to as a "diamond certification" or "cert". The report contains a unique report number that identifies one particular diamond (remember that there are no two diamonds exactly alike).
I occasionally notice a jeweler that claims to be a "Certified GIA Gemologist" - problem is there is no such thing. GIA certifies diamonds; not people. Diamonds get certifications; people get degrees. Someone that has earned a degree like "Graduate Gemologist" knows how to refer to themselves so be suspicious anytime you see someone claiming to be a "GIA Certified something"... it might mean that they are misrepresenting their qualifications.