What Is the Easiest Way To Tell If a Diamond Is Real? | The Diamond Reserve

What Is the Easiest Way To Tell If a Diamond Is Real?

If you bought jewelry second-hand or received it as a gift and are wondering if the stone is a real diamond, then you came to the right place. While jewelers often use a small magnifying glass called a loupe to examine the stone and determine its authenticity, there’s no need to spend money or conduct extensive research to find out for yourself. Let’s take a look at some of the easy at-home tests used to identify diamonds.

How Can You Tell If a Diamond Is Real at Home?

While an at-home test isn’t likely to be as foolproof as taking your diamond to your local jewelry store for an appraisal, there are a few tests you can do and signs you can look for to determine whether the gemstone is real or fake. 

  • Water Test: Fill a glass 75% of the way up with water and drop the diamond into the water. (Note this won’t work if the stone is in a setting.) Since diamonds are very dense, a real one sinks all the way to the bottom of the glass, while a fake one will float.
  • Newspaper Method: Place the diamond face down on some text, such as a newspaper, and see if you can read through it. A real diamond will refract light to the extent that it can’t be seen through.
  • Compare Sparkles: Real diamonds sparkle and often reflect gray hues. The stone should be more sparkly than glass, and you should not be seeing rainbow colors when you look at it as you would with a moissanite.

The first thing you should do when you receive a piece of jewelry with unknown origins is examine the setting and stone closely for any markings. For example, if the setting is made of gold it will likely have a stamp telling you how many karats it is. While this doesn’t necessarily confirm whether the stone is a diamond, diamonds are more likely to be set with high-quality metals.

In the end, the only way to 100% confirm that a stone is real is to take it to your local jeweler. If you’re in the Denver or Austin areas, you can head to a Diamond Reserve location — here’s how to make an appointment.

How To Identify a Natural Diamond

Fortunately, lab-grown diamonds are virtually indistinguishable from natural diamonds to the naked eye because they are the same gemstone just formed in different ways. A lab diamond will still pass all of the tests we discussed above, so to find out if it’s a natural or lab-grown diamond you’ll need to take the stone to your local jeweler.

Many diamonds — both natural and lab-grown — have a certification number and grading laboratory laser engraved into the stone that a jeweler will be able to see using a loupe or microscope. Lab diamonds will also have the words “lab grown” engraved in them, which is an easy way for the jeweler to differentiate between lab and natural diamonds.

Are you looking for an engagement ring, tennis necklace, or other diamond jewelry? Call us for help at 303-385-8449 or make an appointment here.