Diamond Institute of America
Transparent. Honest. Unbiased.
Helping you understand your jewelry—whether you're buying, selling, inheriting, or simply learning.
Request AppraisalHave a Loose Diamond?
If you have a loose diamond or precious stone that you want to learn more about, we can help. Contact us to learn about our evaluation process and how to send your diamond in for professional assessment.
Contact UsVerify Your Appraisal or Certificate
Access and verify your official Diamond Institute of America appraisal or gemologist grading certificate.
Verify NowWhy Choose Diamond Institute of America
Knowledge is the most valuable gem of all—let us help you uncover it.
30+ Years Experience
Decades of hands-on experience within the diamond industry.
Unbiased Opinions
Independent assessments free from sales pressure or conflicts of interest.
Clear Insights
Complex information simplified into useful insights you can understand and trust.
Trusted Service
Professional service you can rely on for all your diamond and jewelry needs.