Gain in-depth knowledge about the multitude of colored stones sold in today’s market. Topics include which gems are commercially important and why, the differences in gem values and shifting supply patterns, and how these factors affect gem prices and availability. The final exam is online, closed book and proctored; see the Education Catalog for details.

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View the Online Education Credential Requirements Chart

• Colored Stones Certificate

• Graduate Colored Stones Online
• Graduate Gemologist Online