Glossary
Laboratory report
A laboratory report is the examination document of an independent gemmological laboratory. It records what a stone is (species and variety), whether it is natural, how it was measured and weighed, its colour and whether treatments are detectable; on request also an origin opinion. A report is not an appraisal of price. At NOBILITH every statement in the dossier is based on the laboratory report.
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- KnowledgeHow to read a gemstone dossierA dossier brings together everything that describes a stone – from the laboratory report to custody. Here is how to read it in the right order.Read more
- Laboratory reportsUnderstanding a laboratory reportA laboratory report is a gemstone's most important document. Which information it contains, how to read it and what it does not say.Read more
- GlossaryAbsorption spectrumWhen light passes through a gemstone, the stone absorbs certain wavelengths – the rest make up its colour.Read more
- GlossaryAfghanistanAfghanistan is an old source of ruby and emerald; both are mined in the mountains of the Hindu Kush.Read more
Updated 2026-10-06