Learn.
Build Your Knowledge.
Strengthen Your Skills.
DCA’s online courses are designed to provide jewelry professionals with a strong, practical foundation in sales, diamonds, and colored gemstones. Each course combines industry-relevant content with a comprehensive final exam to ensure real understanding—not just participation.
Learners may enroll in individual courses based on their professional needs or career goals or register for the Gem & Jewelry Sales diploma program (all four courses).
Available on an online, interactive learning platform, DCA courses are designed to be affordable, easy to follow, and completed at your own convenience—making professional growth more accessible than ever.
The certificates earned by successful completion of DCA courses are recognized in the jewelry industry as hallmarks of professional knowledge and skills.
DCA Courses
Course Completion Recognition
Upon successfully completing a course and passing the final exam, learners receive a DCA Certificate of Completion.
A Certificate of Completion confirms that the learner has:
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Completed the full course of study
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Demonstrated understanding by passing a comprehensive final examination
Proven Sales Impact
A study proved that sales associates who completed the DCA Diamond Course doubled their sales per hour compared to peers.
Each certificate reflects achievement in that specific subject area and may be earned independently of the other courses.
Course Fee
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$125 for DCA Members
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$200 for Non-Members
Whether you are new to the jewelry industry or expanding your expertise, DCA courses provide flexible, self-paced learning designed to support professional growth at every stage.