How to Tell if Diamond Earrings are Real

You may have recently purchased a pair of diamond earrings, but you still don’t know how to tell if they’re real. Before buying new jewelry, perform at least a few simple tests to determine whether your new diamonds are natural. You can perform simple tests at home or take your rock to a jeweler to get certified. If you suspect your diamond earrings may not be authentic, you can conduct heat testing to confirm it.

If you’re still unsure whether your diamond earrings are genuine, try blowing on them. A ring with a fake stone will dissipate the heat immediately, and a genuine diamond earring will take two or three seconds for the heat to dissipate. If it doesn’t, then your diamonds might be fakes. Another way to tell if your diamonds are natural is to use a fog test. This is a classic trick that requires no skills or equipment. You can perform the test in your home with a mirror or glass. The diamond earring should not produce any fog at all, or the fog should dissipate immediately.

Diamond-Realness Testing Comes in a Variety of Forms

There are various methods for determining whether or not a diamond is genuine and some untrue misconceptions. I’m going to break down some easy at-home steps for you below.

The Fog Test (Old)

For a long time, there has been a fog test. In multiple cases, it is correct. It’s easy to accomplish, involves no talent or effort, and can be done at home.

The Steps are as follows:

  • Using a clean rag, wipe the stone away.
  • Hold the stone by the earring’s stem.
  • Fog the diamond with the stone in front of your mouth, as if it were glass or a mirror.

The Expected Outcomes:

  • The diamond mustn’t fog up.
  • If fog appears, it should vanish in seconds, and this should happen each time you take the test.
  • If your diamond earrings fog up, they could be false.

A Jeweler’s Loupe is Amazingly Effective

A jeweler’s loop has also been around for quite some time, and it has long been capable of detecting genuine diamonds. The only drawback to using this test is that you must know precisely what you’re searching for, and it’s more of a backup to other tests; jeweler’s loupe can be purchased for less than $20.

Look for the following:

Imperfections. They can be found in almost every diamond.

Flecks and minerals and color shift somewhat.

The Mount for Earrings Speaks Volumes

The earring’s setting mount quickly determines whether a diamond is natural or not. Consider that for a moment. Who would put a genuine diamond in a low-cost mounting? There isn’t a single good jeweler in the area, which only increases your chances of losing your gem. Check the mount after that.

How to check the mount:

If something is gold, silver, or platinum, it has a visual stamp.

They’re frequently seen on the earring’s stem.

If it says CZ, your diamonds aren’t exactly what you think! Cubic Zirconia will be used.

Amazon Collection Sterling Silver Platinum Plated Infinite Elements Cubic Zirconia Halo Leverback Drop Earrings

Amazon button


  • A halo of lesser stones surrounds an Infinite Elements Cubic Zirconia centerpiece in these delicate drop earrings.
  • Lever back closures attach each platinum plated sterling silver earring.
  • This piece of jewelry was made to the highest quality standards. Every attempt is being made to employ environmentally friendly resources and socially responsible vendors.
  • Cubic Zirconia has diamond-like properties in brightness and clarity, making it a cost-effective alternative often used in jewelry.
  • Imported

What is Some More Testing by Professionals?

You can always have your earrings tested by taking them to a jeweler or even a pawnshop. If you have a lot of earrings to try out, this can take a long time. You can try some of the steps below if you plan on testing diamonds more frequently and want a more reliable source. Always be cautious.

The Diamond is being heated

You might want to try heating the stone, and it will shatter if it is bogus. This can be risky, so make sure you have all the necessary safety equipment and that no one is wounded.

Here’s how to do it:

Using needle-nose pliers (See on Amazon), fire-safe gloves (See on Amazon), and a propane torch, heat the stone for 40 seconds (See on Amazon)

Place the stone in a bowl of ice water.


A diamond is unbreakable. Diamonds are the most robust material on the planet, and unlike glass or other materials, they will not break under the pressure of heat and expansion.

What is the Difference Between Real Diamond and Synthetic Diamond?

Simulated diamonds are gemstones designed to resemble diamonds but are not genuine diamonds. High temperatures, pressure, powdered elements, and metallic chips make synthetic diamonds in a lab crucible. Synthetic diamond simulants are lab-created jewels that aren’t diamonds but look like them.

The following are some examples of synthetic diamond implants:

Cubic zirconia is a type of cubic zirconia that is used

Rutile Moissanite Colorless/white garnet Moissanite Rutile Moissanite Rutile Moissanite Ru

A glass that has been cut and polished

Some diamond simulants aren’t synthetic—they’re not real diamonds, but other white/clear natural gemstones are a less expensive alternative to diamonds.

The following are some natural gemstone diamond simulants:

  • Zircon
  • sapphire, white
  • Spinel that is colorless or white.
  • Topaz white
  • Quartzite (white)
  • Goshenite is a kind of Goshenite (colorless beryl)

Natural diamond implants can sometimes be synthetic. White topaz and white sapphire are usually natural, although some firms make them in a lab, and despite being synthetic, they’re not much cheaper. Furthermore, several famous synthetic diamonds, like rutile, can also be found in nature, indicating that they aren’t necessarily synthetic. Natural diamonds will always be harder than diamond simulants on the Mohs scale.

How to Test Diamond at Home?

Here are the numerous ways to discern an actual diamond earring from a fake, a genuine diamond ring from a fake, and any other diamond jewelry you are unsure about.

Scratch Test is the First Test

Diamonds are the most powerful naturally occurring material on the planet (fun fact, black diamonds are the most challenging variety of diamonds, making them very popular for industrial cutting). As a result, one way to determine an authentic diamond earring from a fake at home is to do a hardness test.

The Method of Sandpaper

The sandpaper method is one approach to doing a diamond scratch test at home. Sandpaper has a Mohs hardness of 7 to 9, making it potentially harder than many fake diamonds and diamond simulants.

Scrub the gemstone with the grittier side of sandpaper.

Examine the diamond for any scratches.

It’s not a genuine diamond if the sandpaper leaves scratches on it.

Although sandpaper is more challenging than many simulant diamonds, it is not as hard as white sapphire, moissanite, lab-grown diamonds, or diamond hybrids; thus, more testing may be required.

The Methodology of Glass

If you don’t have sandpaper on hand, scratching the gemstone of a diamond earring on glass is a quick and easy way to test it at home. The sandpaper approach is slightly better than the glass method, but if your gemstone isn’t a genuine diamond, it’s more likely to be damaged, so the glass scratch test may be safer if you want to save it.

Scrape the Diamond Over a Mirror or Glass Panel

It could be a diamond if it scrapes it, as diamonds are the most challenging material and should harm glass panels or mirrors.

On the other hand, many diamonds imitates are more demanding than glass, so you’ll need to use additional methods to distinguish between a natural diamond and a fake.

Test Number 2: Sparkle Test

Internal dispersion or the way diamonds reflect and refract light, gives them their brilliance. The sparkle test is a diamond test that you may do at home to see if your diamond is genuine or not. And it sits a visual examination of the stone’s appearance in light.

Hold the stone up to a light source.

Turn it around in the light to see it from different perspectives.

Examine the colors of light reflected in the diamond.

Look for grey tones and rainbow hues.

Diamonds are excellent light reflectors. Both white and greyish light shimmers, as well as colors within the diamond, should be visible. The variety of hues available should not overawe you. It’s possible that the gem isn’t a diamond if it just reflects colored light or creates feeble light reflections and colors.

The look of diamonds vs. cubic zirconia: Cubic zirconia is most likely cubic if it reflects more orange colors than white reflections.

Moissanite vs. diamond appearance: Moissanite is highly reflective, but it exhibits a wider variety of vivid colors than diamonds. Look for a balance of white light reflections and colors when inspecting diamonds. Overall, the diamond should be white with traces of color.

Test Number Three: Fog Test

Diamonds diffuse heat quickly, causing the fog to dissipate. Due to its unique qualities, cubic zirconia will retain condensation for longer.

Before starting, make sure your diamond earrings and hands are clean, as oils might interfere with the outcome.

Place the stone in front of your lips and inhale deeply until it becomes fogged.

Please keep track of how long it takes for the mess to clear up.

It’s natural if it clears up after a few seconds, and it’s a fake if it’s fogged up for more than three seconds.

If you have diamond earrings that you know are real, you can compare the results by breathing on both the natural diamond and the diamond in question.

Verify the Metal

A genuine diamond is rare in a low-cost ring or earring setting (or any other jewelry). Diamonds are usually placed in precious metals like real gold, real platinum, sterling silver, and surgical stainless steel for timepieces.

Look for Identifiers

The hallmark for actual gold will be something like 10K, 14K, etc. A decimal is shown on European gold hallmarks (1.00 for 24K gold, .916 for 22K, .75 for 18K, .417 is 10K, etc..).

PT or Plat, 950 or 999 for actual platinum.

Look for the marks 925 or.925 on sterling silver.

Look for gold, platinum, or steel in diamond watches (904L, stainless).

It’s cubic zirconia if there’s a CZ stamp.

It’s plated or filled with gold or silver if it’s stamped GP, GF, EP, EPNS, SP, or SF; your diamond may not be accurate because it’s typically placed in actual gold or silver.

If there isn’t a hallmark, it’s probably a fake diamond (unless it’s antique jewelry or was created by someone who isn’t a professional).

Precious metals are the perfect diamond earrings because they keep the diamond secure and make the item last longer. Any competent jeweler would never set a diamond in a silver-plated earring, ring band, or other metal.


For many people, authentic diamond jewelry is a significant investment. Diamonds play an essential role in the appearance of jewelry, whether it’s a diamond engagement ring, diamond wedding band, diamond necklace, or diamond watch.

The dazzling optical dispersion effect known as “fire” is produced by diamonds. Natural diamonds take 1 billion to 3.3 billion years to develop (25 percent to 75 percent of the Earth’s age), indicating they’ve been around since dinosaurs roamed the planet.

Fake diamonds, synthetic diamonds, and lab-grown diamonds are acceptable to some, but natural diamonds are preferred by many due to their spectacular geological history and look. Fake diamonds don’t have the same track record as natural diamonds, so buying one by mistake can be a tremendous letdown—and it could mean you’re owed a lawsuit.