Observed arrival · 2026-09-04

Gemstein, a Portable Spectrometer for Gemstones

gemstein-spectrometer.com Observed source

Editorial interest 78/100 Selection signal · not a rating of the site

A portable UV–VIS–NIR spectroscopy system for analyzing gemstones in laboratories or the field.

Landing page captured for the 2026-09-04 issue.

Field notes

The page describes a measurement-and-comparison workflow for loose or mounted stones: capture a spectrum, review diagnostic features against a selected reference, and export the result. Its stated range is 300–1000 nm, with an optional photoluminescence mode and software that returns ranked matches. The site qualifies its own matching system carefully, noting that similarity scores support comparison but do not establish identity, origin, or treatment.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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