Gemstone Education
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How To Find Out If a Diamond Is Fake Or Real?

By:  Kristen S

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How To Find Out If A Diamond Is Fake Or Real

They say that diamonds are a person’s best friend and rightly so. Their incredible beauty has captured the hearts of millions all over the world and with good reason. It’s no wonder that women’s real diamond jewelry is an absolute must-have in every collection.

With diamonds having such a high value, it is no wonder that there are a large number of fakes popping up on the scene today. That said, with the right tricks and steps, telling apart a fake diamond from a real one can be done easily. Check out these simple tests that teach you how to tell if a gemstone is real!

How to Check if a Diamond Is Real

1. The Water Test

Grab a glass of water and drop the diamond in. If it’s real, it’ll sink to the bottom because diamonds are heavy. A fake diamond will usually float or stay near the surface. Simple way to tell a real diamond vs a fake, right?

2. The Fog Test

Wondering how to tell if diamonds are real at home? Hold the diamond between your fingers and breathe on it, just like you would fog up a window. A real diamond won’t fog up easily because it disperses heat so quickly. If it stays foggy for a few seconds, it’s likely fake.

3. The Light Reflection Test

Wondering how can you tell if a diamond is real with ease? Hold your diamond under a bright light and look at how it reflects. A real diamond will reflect light in a spectrum of colors, creating that sparkling rainbow effect. Fake diamonds may not have the same brilliance.

4. Using a Magnifying Glass or Loupe

One of the key differences between real and fake diamonds is the presence of tiny imperfections called inclusions. Real diamonds usually have these natural flaws, which give each gem its unique character. Use a magnifying glass or a jeweler’s loupe to examine the diamond closely—if it looks too perfect, it could be a fake.

5. UV Light Test

Place your diamond under a UV light (like a blacklight). Real diamonds usually glow blue, while most fake ones don’t glow at all. This is a simple way to help differentiate between a real and fake gemstone—if the stone glows a different color, it might be a synthetic or imitation diamond.

6. Reading Test

An authentic diamond refracts light, which makes it difficult to read print through it. Place your diamond on a piece of newspaper and try to read through it. If you can, it’s likely fake. Real diamonds will blur the print due to their refractive properties.

7. Halo Test

Use a penlight and shine it through the diamond. A real diamond will create a distinct halo around it when the light passes through. If the light goes straight through without creating a halo, the stone is probably fake.

8. Conducting a Professional Diamond Test

If you really want to be sure, a professional jeweler easily knows how to check if a diamond is real. They can use specialized equipment like a diamond tester to test your diamond and confirm the same. This is the most reliable way to know for sure.

Now that you know the tricks to test if a diamond is real or fake, you can confidently inspect your jewelry! Whether you’re buying a diamond or just curious about your own collection, these simple tests can save you time and money. But if in doubt, always consult a pro— a real diamond is a big investment, after all!

Read More: How to Tell If a Colored Diamond Is Real?

Frequently Asked Questions

1. Can I test a diamond at home?

Yes! There are several simple tests, like the water test or fog test, that you can try at home to check if a diamond is real.

2. Will a fake diamond reflect light like a real one?

Not exactly. Real diamonds reflect light in a rainbow spectrum, giving them that dazzling sparkle. Fake diamonds may lack that level of brilliance.

3. What should I do if I think my diamond is fake?

If you’re unsure, it’s always a good idea to take your diamond to a professional jeweler who can conduct a proper test to confirm whether it’s real or not.

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