Home Lab School Contact
Northwest Gemological Institute

MissionAbout UsCoursesDiamond GradingGemstone IdentificationGemstone EvaluationPearl StringingPearl EvaluationAntique JewelryOpalsHow to Buy A GemstonePrecious MetalsJadeFine TimepiecesUnder WashingtonFacultyEnroll Now!Contact Us

Gemstone Evaluation                        workshop series

Length: 6 hours             
Instructor: Ted Irwin, Graduate Gemologist
                NGI Director

Pre-requisite: Gemstone Identification

This is the class that teaches gemstone values.  Learn the subtle differences that impact what you spend for colored gemstones and how to buy them wisely - whether at a trade show or from your local vendor. Discuss color description systems and how to ask the right questions. Learn to better shop the trade shows and preview the world's largest in Tucson, Arizona.

Graduates are eligible for Ted's Tucson Tour, our annual February trip to the best classroom on earth.

Our gemstone price guide is an integral part of this class and will be utilized as you examine the major colored stone varieties in different quality categories (we also include a section on diamond prices). If you buy gemstones, learn from our school rather than the "school of hard knocks."

Home | Lab | School Appraisals | Appraisal Rates | Registration | Directions  

 Newsletter | Archives | Contact | Library | Selling your jewelry?