Illustration showing common unreliable diamond tests like scratching glass, fogging, and heat, contrasted with professional diamond testers and gemologist certification.

Diamond Tests That Don’t Work: Why Common Home Methods Fail

Diamonds, Gemology, Jewelry Education /

Summary Many home diamond tests—scratching glass, fogging, or checking sparkle—don’t prove authenticity. Learn why these methods fail and discover safe, reliable ways to test your diamond. Introduction Many people rely on old diamond tests that don’t work, like scratching glass, fogging the stone, or checking sparkle. These DIY methods are misleading and can even damage […]

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