How To Identify A Real Black Diamond?

In the short span that the world has known it, Black Diamonds have managed to steal our hearts with their dark and enigmatic striking black hue, with a touch of sparkle that also can’t be ignored. It is hard to come across such a gemstone that it is so visually striking.

In fact, (besides its visual beauty), the rarity of black diamonds has also made it one of the rarest treasures of the gemstone industry. The most common question that arises when we speak of a real black diamond is - How to identify a real black diamond?

To end the fakes popping up once & for all, experts at Rosec Jewels have come up with all the right methods and steps that will walk you through telling apart a fake black diamond from a real one and will help you to make a more informed choice while shopping (is worth a read). Let’s dig into it:

First things first,

About Natural Black Diamonds

Black Diamonds are quite rare and they have a truly fascinating black hue. The mysterious aura and unique hue have made them popular in the jewelry industry.

Even white diamonds can be transformed into treated black diamonds, by enhancement treatments that are totally safe and effective. To get that hue, the two most common practices are Irradiation and High Pressure High Temperature (HPHT).

Natural Black Diamonds vs Treated Black Diamonds

Aspect Natural Black Diamonds Treated Black Diamonds
Formation Real Black Diamonds are naturally formed inside the earth’s crust under high temperature and pressure. Treated Black Diamonds are formed by various enhancement treatments like irradiation and HPHT.
Color A natural black diamond color ranges from dark brown to dark green to black. A treated black diamond color features an intense rich black color, with no inclusions.
Cost They are generally more expensive. Due to natural formation and scarcity. They are quite affordable and comparatively less expensive than real black diamonds.
Value In general, they are more valuable as they are hard to find and their natural origin. They are less valuable when compared to genuine black diamonds.
Durability They are as durable as other diamonds. They can get easily cracked due to high stress.
Market Preference Real black diamonds are preferred by collectors and those seeking natural gems. Treated ones are often used in gemstone jewelry.

Dazzle in Black: Shop Now!

Black Diamond Rings are a beautiful choice. Rosec Jewels have a wide range of styles to choose from. With their striking appearance, these black gems captivate attention.

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Let’s get back to the main question,

Identify the Natural Black Diamond is Real or Fake

  1. Water Drop Test

    You will need a glass filled with about three-quarters of water, then place your black diamond into the glass. A real black diamond will sink to the bottom of the glass, whereas the fake one may float on the top of the water.

    Note - A real black diamond has a higher density than the treated black diamond.
  2. Dot Test

    A real diamond has a refractive quality that scatters the light in different rays, it’s quite impossible to see any dot through it.

    This test needs a white piece of paper and a pen. All you need to do is put the white paper on a hard surface, then draw a small dot with a pen and lay the flat side of the black diamond atop the dot. Then, look down on the paper through the pointed side of the gem.
    If you can see the dot or any reflection of it, then it’s fake. If you can’t see the dot or any reflection of it, then it’s a real black diamond.

  3. Fog Test

    Another way to determine if your black diamond is real or not is the fog test. You can simply breathe directly on your black diamond, the heat and the moisture of your breath will lead to a light fog on the black diamond. Real ones are excellent heat conductors, if your black diamond is real the fog will disappear instantly, whereas if it's a fake one it might take a few seconds.

  4. The Hest Test

    This test might break your stone if it's fake, so keep it in mind while performing this method.
    To perform it, just hold your gemstone over the candle, lighter, or any flame for around 40 seconds and let it heat up. Then, drop your gem directly into the glass of cold water. If the gem shatters or gets cracked, it means it's a fake one.

    Real diamonds are heat resistant so they can withstand any rapid temperature changes.

  5. The Sparkle Test

    To perform this test, simply hold your black diamond under a white light such as a fluorescent lightbulb, or a white LED. And, if the light bounces and reflects colored beams then your black diamond is real.Usually, a fake one has a pale or dull reflection when introduced to any light source.

  6. Magnifying Glass Test

    To see inclusions (small imperfections or clusters of non-diamond material) use a magnifying glass with at least 10x magnification as inclusions are rarely seen by the naked eye.

    Natural black diamonds can never be perfect and will always contain imperfections. Whereas, a treated black diamond made in a lab will be perfect and flawless which concludes it is a fake one.

    Fluorescence Test: Test your black diamond under UV light, the diamond will show off fluorescence. When examined, a bluish glow points out the presence of a real diamond.


    Note: You can also perform a scratch test, and use a black diamond to scratch a piece of glass. Diamonds are on top of the hardness level. Only a material as hard as a diamond can scratch a glass without damaging itself.

Diamond Test Equipment

Use a diamond tester that helps in indicating the heat or electricity conductivity to check if a gem is a real one or not.

Heat Conductivity: Diamonds are excellent heat conductors. A heat-based diamond tester can easily confirm a real black diamond by its rapid conduction. Unlike imitations such as CZ or diamond, they do not conduct heat.

Electricity Conductivity: Most diamonds are not electrically conductive. Black Diamonds typically contain inclusions that make them conductive. An electricity conductivity tester can identify these inclusions and confirm the diamond’s authenticity.

Final Thoughts

Whether you’re someone struggling to find a natural black diamond or if you already have one and want to check if it's real or not, this blog is for you!
Putting an end to methods of checking a real black diamond, experts at Rosec Jewels have assembled all the methods to identify a genuine black diamond. Give them a good read and you’ll be more than ready to make a more informed choice all by yourself accordingly.

We hope you had a lot to take away from this blog. We’d be back with more of such interesting and informative blogs. Until then, stay tuned!

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