6. The Fog Test

ring, jewellery, finger, fashion accessory, nail,

Real diamonds conduct heat extremely well- if you breathe onto a diamond and the fog from your breath disperses quickly, it could be real!

Fake diamonds will retain heat for longer.

It's best to use this method against a diamond you know is real.

This test is also ideal for a stone within a setting.

Take It to an Appraiser
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