Graduate Colored Stones Program

Colored Stones Hero

The Graduate Colored Stones diploma program blends theoretical knowledge with practical application. Topics include gemstone formation, properties, sources and the colored stone supply chain. Students learn how to describe color by hue, tone and saturation, which gemstones are commercially important and what factors affect gem price and availability. The course describes the general observation process, standard gemological tests and equipment and when advanced laboratory testing and instrumentation is needed for accurate identification. Using professional gemology equipment, students identify diamonds, colored stones and simulants; distinguish natural, treated and laboratory-grown diamonds and colored stones; and grade colored stones.

What You’ll Earn: GIA Graduate Colored Stones Diploma

What You'll Learn

  • ​Describe the components of colored stone supply chain
  • Explain the science of colored stone formation, appearance and identification
  • Describe how quality, rarity, color and market factors affect gem value
  • Identify diamonds, colored stones and simulants
  • Grade colored stones using the GIA Colored Stone Grading System
  • Detect treated and laboratory-grown gemstones
  • Describe the GIA Colored Stone Grading System

Possible Career Paths

  • Colored Stone Grader
  • Colored Stone Sorter
  • Appraiser
  • Auction House Jewelry Specialist
  • Colored Stone Buyer
  • Estate Jewelry Dealer
  • Jewelry Business Owner
  • Jewelry Buyer
  • Jewelry Sales Professional
  • Pawnbroker
  • Retailer
  • Wholesaler