Gemworld International offers education classes developed and taught by Çiğdem Lüle, PhD, FGA, GIA GG. The aim of these hands-on courses is to provide practical knowledge specific to gem market pricing and identification challenges. The programs are designed for practicing gemologists, appraisers and industry professionals that buy, sell and appraise gemstones.
In addition to the continuing education courses, Gemworld also offers individualized corporate training programs tailored to the specific objectives of the client. These programs can vary from one-to-one practical classes, to corporate staff training in areas including gemology, gem identification, take-in procedures and jewelry product knowledge.
Colored Stone Grading and Pricing – Theory Only Free Digital Webinar
A three-part Free Webinar with Çiğdem Lüle online instructor and introductions by Richard Drucker that explores the relevant considerations when examining the color, clarity, cut and carat weight of a colored gemstone specifically for the purpose of estimating its value. (Read More)
Color grading is presented following the new World of Color nomenclature and based on the international standard of the Munsell system. In this course, participants will examine and grade a variety of colored stones. The hands-on session is supported by a PowerPoint presentation featuring high quality images of specific quality factors that establish the overall grade.
The value of a colored stone is dependent on a number of factors both internal and external to the gem. As quality factors are discussed in this course, it will be done from the perspective of the identification and classification of specific traits as they relate to value. In 1982, Gemworld International developed a system for grading colored stones within the context of trade relevant terminology (i.e. Commercial, Good, Fine and Extra Fine). Today its 1 to 10 scale is an industry standard.
Free to all Gemworld Subscribers
Colored Stone Grading and Pricing – Theory and Lab
This 4 hour workshop explores the relevant considerations when examining the color, clarity, cut and carat weight of a colored gemstone specifically for the purpose of estimating its value. (Read More)
Color grading is presented following the new World of Color nomenclature and based on the international standard of the Munsell system. In this course, participants will examine and grade a variety of colored stones. The hands-on session is supported by a PowerPoint presentation featuring high quality images of specific quality factors that establish the overall grade.
The value of a colored stone is dependent on a number of factors both internal and external to the gem. As quality factors are discussed in this course, it will be done from the perspective of the identification and classification of specific traits as they relate to value. In 1982, Gemworld International developed a system for grading colored stones within the context of trade relevant terminology (i.e. Commercial, Good, Fine and Extra Fine). Today its 1 to 10 scale is an industry standard.
Corundum Treatments and Pricing Workshop
This class is an intense one-day workshop on corundum treatments and pricing. Heating and other methods used to enhance the appearance of corundum are having a profound effect on the market.(Read More)
The workshop is designed to reconcile the pricing of rubies and sapphires by specific treatment type. Participants will examine a variety of natural and treated ruby and sapphire followed by a presentation concerning pricing considerations. The hands-on session is supported by a PowerPoint presentation featuring high quality images of certain characteristics that reveal if and how the stones have been enhanced.
Christopher Smith, President of the American Gemological Laboratories, is the scientific adviser of this program.
Emerald Treatments and Pricing Workshop
This half day hands-on workshop focuses on commonly seen emerald treatments in today's market. PowerPoint presentation will cover detailed information on gemology of emerald, identification issues and the modern laboratory methods to identify the fillers.
Attendees will examine emeralds treated by various methods and learn the practical techniques used in the field to recognize them. The degree to which an emerald has been enhanced is one of the major considerations when accurately pricing these popular gems. Tips regarding how to estimate the treatment level are also presented.
Value factors such as color, clarity and transparency are discussed based on the GemGuide pricing system. Emerald specimens have been specifically treated for this program to illustrate the common treatment types and levels of enhancement encountered in the market.
Cultured Pearls and Pricing Workshop
Cultured pearls are one of the fastest growing sectors in the gem trade. Many varieties of Chinese freshwater pearls have earned widespread consumer appeal across the global market. (Read More)
Today, cultured pearls are produced in an array of colors, shapes and sizes. Yet the standard remains the round to near round white products. Although visually similar, beyond appearance these products share little in common. Market availability, surface quality and of course price differ greatly from variety to variety as well as among pearls of the same variety. Accurately pricing cultured pearls requires the professional gemologist to distinguish not only between types, but also to correctly assess quality and shape factors within the same variety.
In this workshop, participants will examine and grade a variety of cultured pearls followed by a presentation concerning common enhancements and pricing considerations. The hands-on session is supported by a PowerPoint presentation featuring high quality images of certain characteristics useful for assessing overall grade.
Gemworld International, Inc. reserves the right to cancel due to low enrollment or other causes beyond our control. Should a class be cancelled, a full 100% refund will be given to you.