dianoche logo

We’re here to help you decide whether you need to store it away in your safe or if it will make a great addition to your child’s play jewelry collection.

Today we’ll be teaching you all about fake diamonds. How to spot one, what it could be instead and what to do with it if you think it’s a fake.

Also read: How to spot a fake diamond?

5 Tips to Help You Spot a Fake Diamond

You’ll be happy to hear that you can perform an assortment of home tests to help you confirm the authenticity of your diamond.

Here are 5 tips you can use to determine if your diamond is real or a fake.

1. Whip Out a Loupe

One of the easiest ways to tell whether a diamond is real or fake is by looking at it under a loupe. A loupe is a magnifying device that will allow you to closely inspect your diamond. You can purchase a loupe from most jewelry stores and a handful of online retailers. Here’s how to spot a fake diamond using a loupe:
  • Look for imperfections: A diamond is a gift given to us by nature.This means that it is impossible to find a natural diamond that is completely free from imperfections. If you cannot visibly detect any imperfections, unfortunately the diamond you’re looking at is most probably a fake.
  • Inspect the edges: When viewed under this level of magnification, a genuine diamond will have sharp edges whereas the edges of a fake diamond will appear rounded.
  • Examine the mounting and etchings: Chances are if your diamond is real it will be mounted in high-quality mountings such as gold or platinum.Be wary of diamonds that are set with low-quality metals.

2. The Sandpaper Test

Diamonds are one of the toughest materials on the planet so a rub of sandpaper will cause no damage to the surface of a real diamond. But if you rub a piece of sandpaper against a fake diamond the rock will appear scuffed and scratched.

3. Take a Deep Breath

Take a deep breath and exhale the hot air onto your diamond. Both real and fake diamonds will fog up. The difference is that a real diamond will only stay fogged for one to two seconds while a fake diamond will remain fogged for three to four seconds.

4. Let the Light Decide

Diamonds are known and loved for the way they reflect light. The internal light a diamond produces is referred to as brilliance while the external reflection is called fire. A real diamond will produce a sparkle that is gray and white in color, while a fake diamond will produce a dazzling multi-colored sparkle.

5. Pick Up a Newspaper

It’s a well-established fact that diamonds refract light. A real diamond will have a high refractive index while a fake diamond will refract light poorly. To determine whether or not your diamond is a fake, place it over a newspaper. The light will refract and you won’t be able to read the print clearly, whereas a fake diamond will allow you to read the print without a struggle.

My Diamond is a Fake! Now What?

If the above home tests indicate that your diamond is more than likely a fake, take it to be examined and inspected by a gemologist. You’ll want to take your diamonds to a qualified gemologist and not a regular jeweler who doesn’t have enough experience on the topic— just imagine throwing away a diamond thinking it was a fake only to discover it was actually real!

If It Isn’t a Diamond, what is it?

If you’ve confirmed that your diamond is indeed a fake, you might be surprised to discover it could still be quite valuable and not just a piece of worthless jewelry. But what could possibly mimic a diamond so well? Your fake diamond could actually be a:
  • Cubic zirconium: Cubic zirconium, also known as cubic zirconia, is a synthesized crystal.This cubic crystalline can be any color, including white. Cubic zirconium is quite hard but is known to scratch easily. It’s very cheap to purchase and has a next to worthless resale value.
  • White sapphire: Sapphires are typically blue and occasionally red, black or pink.Even more rarely, a sapphire can be white. Sapphires are the second hardest gemstone and are extremely valuable, so you may want to hold on to your white sapphire.
  • Moissanite: Moissanite is a dazzling stone and the moissanite mineral in its raw form is incredibly rare.The main difference between diamonds and moissanite is the type of sparkle produced. Moissanite will produce a rainbow sparkle, while a diamond will produce a typical sparkle of white and gray.
  • White topaz: When you think of topaz, you’d be right to think of a gem tinted yellow, red, gray or brown.But occasionally a topaz can be white or even colorless and it can then be confused for a diamond. Topaz is a semi-precious gemstone but is softer and more prone to scratching than a diamond.
  • Synthetic diamond: A synthetic diamond is a diamond that has been grown in a laboratory environment.It looks, feels and features the typical chemical characteristics of a real diamond. While technically classed as a diamond, a synthetic diamond can be up to 30% less valuable than a natural one.

Final Thoughts

It’s always recommended to confirm the authenticity of a diamond. When you inherit a diamond, it’s important to confirm that it’s real in order to properly care for it and insure it. If you’re planning on purchasing a diamond, be sure to insist on seeing its certification before paying the price of a real diamond and ending up with a fake. Do you have any of your own tried and tested tips to check if a diamond is real or fake? If you do, please share them with us in the comments section below.

Share This Post

Didn’t find the answers you were looking for?

Enter your details and our experts will be happy to assist you!

Related Posts


Our experts will be happy to assist you!

Need help in finding the perfect jewelry? Fill the form below and one of our experts will contact you. 

Our experts will be happy to assist you!

Need help in finding the perfect jewelry? Fill the form below and one of our experts will contact you. 

Our experts will be happy to assist you!

Need help in finding the perfect jewelry?
Fill the form below and one of our experts will contact you.

Fill the Form