There is a good chance that you have seen a man or woman hunched over a desk, peering at a teeny diamond through a little looking glass. What are they looking for and what is that thing they are looking through? – They are taking a deep look into the diamond to make sure it is real. Oh and they are using what is called a loupe.
Of course, they are also looking for the major things, like clarity and the quality of the cut. However, some of the imperfections are a tell tale sign that the diamond is actually real. Knowing some of these tips and tricks that professionals use can help you at home. Here are some ways that the professionals can spot a fake diamond.
- Make sure your diamond comes with certification. If a diamond doesn’t come with certification, it may not be real. Ideally, you want the diamond to come with GIA certification. There is a good chance that the diamond is a fake without documented proof.
- Look for imperfections; imperfections may be a good thing. Anything made in nature will have imperfections. If a diamond is made in a lab, it will be virtually flawless. This isn’t always a good thing, because a fake flawless diamond isn’t worth nearly as much as a real diamond with a few flaws. Moreover, a real diamond will have rougher edges. Again, anything made in nature will be a little rougher. If the diamond you are looking at under the loupe has rounded edges, it is most likely a face.
- Use light-grade sandpaper and gently rub against the stone. A real diamond will be virtually indestructible, unless you have a real diamond to cut into the diamond you are examining. Under a loupe, you will want to use a light-grade sandpaper to gently try and scratch the surface of the stone. If the diamond is real, the sandpaper won’t scratch it. If the diamond is a fake, you will see scratches. Again, a diamond is not only beautiful and sparkly, it is also incredibly resilient – it did just spend a billion years traveling through the layers of the earth.
- Gently blow on the diamond and try the fog test. The simplest way to explain it is that a real diamond won’t fog up, because it won’t retain the heat from your breath. In fact, this is one of the first steps that professionals take when testing out a diamond for authenticity. A fake diamond, however, will fog up for a few moments. If this happens to the diamond you are testing, it is definitely a fake diamond.
- Hold the diamond up to the light and see how it sparkles. On top of everything, you may want to hold the diamond up to the light and see how it sparkles. If the diamond is sparkling grey and white inside, you have a real diamond – this is called “brilliance.” A real diamond will also reflect a rainbow, which is called “fire” in diamond parlance. A fake diamond will reflect a rainbow, but no brilliance. In the end, a fake diamond may be sparkly, but that’s about it.