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The Art and Science of Identifying Gemstones


Gemology is both art and science. Learn how identifying gemstones combines traditional testing techniques, modern software, and deductive reasoning.

12 Minute Read

HomeLearning CenterGemologyGemstone Testing and IdentificationThe Art and Science of Identifying Gemstones
By Donald Clark, CSM IMG, updated on

One of the biggest mistakes beginning gemologists make when identifying gemstones is over-relying on data. After conducting some initial tests, they consult long lists of potential species. It’s easy to get lost in a sea of data and overlook important clues. Gemology is as much art as science, and relying strictly on analytical skills can hamper your work. Learning gemology requires not just practicing testing techniques but also improving your deductive reasoning.

Below you’ll find an outline that combines traditional gem testing techniques with the possibilities modern gemology software offers. This step-by-step procedure also emphasizes developing your deductive reasoning as an essential skill for identifying gemstones.

Gemology Tools Software

The Gemology Tools software makes the gemstone identification process more efficient. Enter your test results in the database program and let your computer cross-reference the data and search for possible matches.

The data searching features of Gemology Tools are so powerful you can do things never before possible. I have developed new procedures to take advantage of this inexpensive software that simplify the identification process and reduce the lab work and time required.

In a traditional gemological approach, the refractive index (RI) and specific gravity (SG) are the most useful pieces…

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