Analysis & Grading
Colored Diamond Reports & Services
Submit a Gemstone
Available Reports
Colored Diamond Grading Report
Full quality assessment, color grade and clarity plot. Identifies natural vs. treated color. For loose colored diamonds 0.15 carats or more.
Colored Diamond Identification and Origin Report
Describes the colored diamond’s color grade and identifies natural vs. treated color. For loose or mounted colored diamonds of any size.
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Colored Diamond Identification and Origin Report
Any carat weight, loose or mounted
View Sample Report
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| Approximate Cost | $ 147 * | $ 98 * |
| GIA 4Cs Assessment |
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| Color Grade & Origin |
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| Clarity Grade |
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| Carat Weight |
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| Plotted Clarity Diagram |
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| Measurements |
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| Polish & Symmetry |
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| Fluorescence |
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Tested for Natural Vs.
Synthetic and Treatments |
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| Laser Inscription | Optional | Optional |
| Full Color Image | Optional | Optional |
Colored Diamond Services
Laser Inscription
Microscopically inscribes diamond’s girdle with its unique GIA report number for easy identification, or with a personal message, or symbols.
Diamond Type Analysis
Determination of diamond type – Ia, Ib, IIa or IIb. Results delivered verbally, or by letter upon request.
Sealing
Diamond and key grading information sealed in compact, tamper-resistant package for easy transport and display. Limit on diamond dimension may apply.
Quality Assurance Service
Variety of testing-only services to determine diamond authenticity, natural vs. synthetic, natural vs. treated, or specific treatment identification.
Frequently Asked Questions
- Which analysis and grading services are offered at each laboratory location?
- How do I pay for analysis and grading services?
- Why does a diamond have to be loose for the Diamond Grading Report and Colored Diamond Grading Report?
- How does the colored diamond grading system differ from the D-to-Z diamond grading system?
- How does GIA grade colored diamonds?
Resources
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Lab Turnaround Times
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Analysis & Grading Fees
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GIA Locations
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