Sundance Jewelers

OUR EDUCATION

OUR EDUCATION

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Betty, Bill Sr. and Bill Jr. are all GIA (Gemological Institute of America) Graduate Gemologists. GIA has the strictest standards for grading diamonds and gemstones and their grading process is known worldwide. The Yonkus' received their certification at the GIA campus in California. After completing their courses, they returned to Michigan to share their skills. Since 1992 Sundance Jewelers has been able to grade diamonds and gemstones, type accurate insurance appraisals, and identify stones. While we still have our turquoise and sterling silver roots, our skills have broadened to fine jewelry and diamonds. 

A Little More About GIA

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

What is a Graduate Gemologist Degree?

The most prestigious credential in the industry, the GIA Graduate Gemologist program teaches the comprehensive knowledge of diamonds and colored stones needed to succeed anywhere in the jewelry business. both technical expertise and practical skills are taught to evaluate gemstones by the 4Cs (color, clarity, cut, and carat weight), the International Diamond Grading Systemâ„¢, and the Colored Stone Grading System.