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Determining whether a diamond is real or fake can be challenging, especially for beginners. This comprehensive guide will help you identify authentic diamonds with ease, regardless of your experience level.
Fill a glass with water and drop the diamond into it. A real diamond will sink due to its high density, while a fake one may float or stay suspended.
Breathe on the diamond to create fog. Real diamonds disperse heat quickly and should clear up almost instantly, whereas fakes will take longer to clear.
Place the diamond over text in a newspaper. If you can read the text through the stone, it is likely fake as real diamonds refract light strongly, making the text unreadable.
A jeweler’s loupe allows you to inspect the diamond closely. Look for imperfections known as inclusions which are common in real diamonds but often absent in fakes.
Real diamonds disperse heat rapidly. A thermal conductivity tester can measure this property and help verify authenticity.
Expose the diamond to UV light. Real diamonds often emit a blue fluorescence under UV light, although this is not definitive proof alone.
