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Niz-Gem Laboratory

Niz-Gem Laboratory

Beruwala, Sri Lanka
Rating 4.09 2 Votes
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EGL USA

EGL USA

New York, United States
Rating 4.09 3 Votes
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American Gemological Laboratories

American Gemological Laboratories

New York, United States
Rating 4.31 6 Votes
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Jatan Hallmarks

Jatan Hallmarks

Coimbatore, India
Rating 4.31 8 Votes
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GS Laboratories

GS Laboratories

Toronto, Canada
Rating 4.09 4 Votes
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Gemological Science International

Gemological Science International

Mumbai, India
Rating 4.09 3 Votes
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Sri Sakthi Testing

Sri Sakthi Testing

Coimbatore, India
Rating 4.09 4 Votes
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SSEF Swiss Gemmological Institute

SSEF Swiss Gemmological Institute

Basel, Switzerland
Rating 4.09 3 Votes
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Shree Ganesh Assaying & Hallmarking Centre

Shree Ganesh Assaying & Hallmarking Centre

Kolkata, India
Rating 4.09 9 Votes
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Diamond Lab Instruments

Diamond Lab Instruments

Mumbai, India
Rating 4.09 3 Votes
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Srinivaas Hallmark Centre

Srinivaas Hallmark Centre

Dharmapuri, India
Rating 4.09 13 Votes
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Pavans Hallmark Testing Unit

Pavans Hallmark Testing Unit

Chennai, India
Rating 4.09 5 Votes