Gem laboratories: consistent testing and clearer reports
Image · CIBJOCIBJO reviews laboratory practices, technical requirements and testing protocols. The focus is comparability and trust in gem reports, including terminology harmonisation; this is an industry report, rather than a new universal certification scheme.
What the report says
CIBJO calls for more consistent laboratory management, technical requirements and testing. A proposed worldwide list of laboratories following its practices was shelved; the report does not launch a universal certification list.
JEWEL DAILY perspective
Our reading: a retailer should explain which questions a report answers—identity, treatment, origin or another characteristic. Laboratory findings and a seller’s pricing judgement are separate matters.
Check the report number and its correspondence with the submitted stone before comparing terminology. Where conclusions differ, ask the issuing laboratory about scope and method rather than selecting whichever wording supports the higher selling price.
