| 1 |
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GIA |
Gemological Institute of America |
Verify Report |
| 2 |
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HRD |
Hoge Raad Voor Diamant |
Verify Report |
| 3 |
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IGI |
International Gemological Institute |
Verify Report |
| 4 |
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EGL |
European Gemological Laboratories |
Verify Report |
| 5 |
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NGTC |
National Gemstone Testing Centre |
Verify Report |
| 6 |
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GSI |
Gemological Science International |
Verify Report |
| 7 |
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CGL |
Certified Gemological Laboratory of Europe |
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| 8 |
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AGS |
American Gem Society |
Verify Report |
| 9 |
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SGL |
Solitaire Gemmological Laboratories Ltd |
Verify Report |
| 10 |
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IIDGR |
International Institute of Diamond Grading and Research |
Verify Report |