How can you test a diamond?

Lay the stone onto the dot with the flat side down. Through the pointed end of the diamond, look down onto the paper. If you see a circular reflection inside the gemstone, the stone is fake. If you cannot see the dot or a reflection in the stone, then the diamond is real.

How can you test a diamond at home?

This one's easy: Get a glass and fill it with water (it doesn't matter what type of water you use). Drop the diamond into the glass of water. Due to the high density of diamond, when dropped into water a real diamond will sink. If the diamond floats to the top or middle of the glass, it's fake.

How do you tell if a diamond is real with a flashlight?

You can tell if a diamond is real with a flashlight when the diamond is observed to successfully separate light into spectral colors, where the fake comparison stone does not.

How does a jeweler test a diamond?

A loupe is a small magnification device used by jewelers to see minute details up close. Most jewelers use loupes to inspect diamonds for their class and clarity. If you don't have one then you're in luck, as Amazon has a huge selection of loupes at reasonable prices.

How can I tell if my diamond is real?

Lay the stone onto the dot with the flat side down. Through the pointed end of the diamond, look down onto the paper. If you see a circular reflection inside the gemstone, the stone is fake. If you cannot see the dot or a reflection in the stone, then the diamond is real.

How To Check If A Diamond Is Real Or Fake

How can you tell a fake diamond?

Black Light Test

To conduct the test, turn off all the lights and put your stone under the source of black light. If you're holding a genuine diamond, you'll witness an intense blue color on the diamond surface. A fake gemstone will reveal itself through other colors — including green, yellow, or gray tints.

Does a real diamond sparkle rainbow?

We all love how a diamond shines in the sunlight. Test your stone by putting it in direct sunlight and examining the colors it reflects. A real diamond will reflect both rainbow colors as well as white light. If you only get one of the two, then the diamond isn't real.

Is there an app to test diamonds?

Now you can detect the authenticity of Diamonds and Gemstone through an App. Khanna Gems has launched a comprehensive mobile app available on both iOS & Android Platforms.

Do real diamonds sparkle?

The way that diamonds reflect light is unique: the inside of a real diamond should sparkle gray and white while the outside should reflect a rainbow of colors onto other surfaces. A fake diamond, on the other hand, will have rainbow colors that you can see inside the diamond as well.

How can you tell a diamond from a cubic zirconia?

The best way to tell a cubic zirconia from a diamond is to look at the stones under natural light: a diamond gives off more white light (brilliance) while a cubic zirconia gives off a noticeable rainbow of colored light (excessive light dispersion).

How can you tell a diamond from a crystal?

Look down at the top of the crystal and count the sides.

Diamonds are cubic, while other similar stones like quartz are hexagonal. Look down at the point of the crystal and count the number of sides. If there are 4 sides, there's a possibility the crystal is a diamond.

How can you tell if a stone is real or fake?

Apply heat test by using a lighter, if the stone melts down then it is fake (plastic) and if the stone remains solid then it is original.

Do diamonds float in water?

Real diamonds should not float. To perform the floating test, all you need is your stone and a glass of water. Drop the diamond into the water. True diamonds have high density and should quickly sink to the bottom of the glass.

Do diamonds reflect like a mirror?

The Mirror-Like Effect

Glass has a low reflective index (1.50), while the diamond has a reflective index of 2.42. Therefore, one cannot “look through” a diamond. Instead, the ray of light creates a mirror-like effect by reflecting back the light.

How accurate is the water test for diamonds?

Since diamonds have high density, if you carefully drop one into a drinking glass with ¾ water, it will sink to the bottom. If it floats in the middle or at the surface of the water, then you know it's not real. Though, this test shouldn't be enough as a moissanite or a cubic zirconia may also sink if too heavy.

How do you test a diamond with sandpaper?

In the first experiment, rub a piece of sandpaper against the stone. Diamonds are one of the hardest naturally-occurring minerals so, if it is scratched by sandpaper, it's most likely not a real diamond.

Does diamond shine in dark?

Solution : Diamonds do not have their own light. They shine when light incident on it, refracts inside it and suffers multiple internal reflection and remains trapped in it. Due to this it shines. However in dark room, there is no light that can penetrate inside, hence it does not shine or is neither visible.

Do fake diamonds glow under UV light?

Ultraviolet Light: About 30% of diamonds will glow blue under ultraviolet lights such as black light. Fake diamonds, on the other hand, will glow other colors or not at all.

What color diamond sparkles the most?

Because diamonds reflect white light, colorless diamonds produce the best sparkle and fire. In fact, the more color a diamond has, the less likely it is to reflect white light. And as a result, will produce less sparkle. A D-color diamond is the highest quality, and will offer the greatest sparkle.

Do diamonds scratch?

While incredibly tough, diamonds are still vulnerable to scratches just like other gemstones. The Mohs' scale (scale of mineral hardness) specifically defines hardness as the resistance to being scratched.

Can sandpaper scratch a diamond?

Can Sandpaper Scratch a Diamond? No, sandpaper cannot scratch a diamond. The hardness of sand paper grit ranges between 7 and 9 on the Mohs scale, which makes sand paper softer than a diamond.

Can boiling water damage a diamond?

It's best for a consumer to not put diamond jewelry in a pot of boiling water, as is suggested by some jewelers. The reason being, that the consumer can cause damage to the diamonds if the boiling is not done properly.

How do you test a diamond with fire?

If you're serious about finding out whether your diamond is real or fake, you can put the stone through a fire test. Use a lighter to light the stone for approximately 30 seconds before dropping it in cold water. If it's a real diamond, the stone will remain unharmed, but if it's fake it will shatter to pieces.