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How to Read a Coloured Stone Laboratory Report

GIA, Gübelin, SSEF, and Lotus each use consistent conventions — learn what identification, enhancement, and origin sections mean.

How to Read a Coloured Stone Laboratory Report
11 July 20265 min readBy Super AdminEducation
How to Read a Coloured Stone Laboratory Report
  • Laboratory Reports

A coloured stone report confirms material identification (e.g. natural corundum), describes observable characteristics, and comments on enhancement when detectable. Origin opinions appear only when the laboratory has sufficient confidence.

Compare report date, stone weight, and measurements against the physical stone. For important acquisitions, match the laser inscription when present.

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