Diamond Institute of America
30+ years of expert diamond grading & evaluation.
Transparent. Honest. Unbiased.
Helping you understand your jewelry—whether you're buying, selling, inheriting, or simply learning.
Clarity you can trust.
Professional Diamond & Jewelry Appraisal Services
From loose diamonds to fine jewelry, our evaluations are always independent and free from sales pressure, ensuring you get clear, factual information about your pieces.
Expert Evaluation
Over 30 years of hands-on experience in grading and evaluating diamond jewelry. We break down complex information into simple, useful insights.
Transparent & Honest
Our mission is simple: to provide transparent, honest, and unbiased expertise you can trust. No sales pressure, just factual information.
Educational Approach
Whether you've inherited jewelry, are considering a purchase, or simply want to understand diamonds better, we're here to help you learn.
Why 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 in diamond grading and jewelry evaluation.
Unbiased Evaluations
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.
Ready to Understand Your Jewelry?
Whether you're buying, selling, inheriting, or simply learning about your jewelry, we're here to provide the clarity and expertise you need.
Verify Your Appraisal
Access and verify your official Diamond Institute of America appraisal certificate online.
Verify Now