Diamonds - Real or Fake
When it comes to buying diamonds, whether for an engagement ring or necklace, buyers most likely wonder if the diamond is real or fake. With several white gemstones that look similar to a diamond, such as white sapphire and moissanite, it can be difficult to determine if a diamond is authentic. If you’re wanting to check any diamond-encrusted item you receive and test the diamond to see if it’s real or not, here are a few affordable methods for you to test your diamonds:
1. Use a diamond tester kit to test if a gemstone is a real diamond or a simulant. However, with moissanite, it can be tricky to use an electronic diamond tester on it since it resembles a diamond.
2. Place your diamond upside-down over any physical text material. If you can read the text through the stone, it’s safe to say the stone is not a diamond. This is known as the transparency test. However, this test may not be effective when testing low-cut diamonds or stones, such as emeralds.
3. The fog test is another test you can perform to examine if a diamond is authentic. Position the diamond in front of your mouth and breath on it to create fog like you would on a mirror. If the fog stays for 2-4 seconds, the stone is not a diamond. If the fog disappears by the time you look at the stone, then it’s a real diamond. Diamonds are great conductors of heat, so they can absorb heat quickly. If the stone has oil and/or dirt on it, it can affect the fog test. Doublets, where the diamond and cubic zirconia are stuck together, also cannot produce an accurate result with the fog tests.
4. Weigh the stone to test if it’s a genuine diamond. The most popular diamond simulant, cubic zirconia, weighs about 55% more than a real diamond at the same size and form. You can weigh the stone on a carat or gram scale to see if the stone tips the scale more than a diamond would.
5. Put the stone under an ultraviolet light or blacklight as a U.V. test. When placed under a blacklight, most diamonds give off a blue fluorescent color. Ninety-nine percent of fakes don’t give off the color, so you can judge the stone for authenticity with the U.V. test. Although a U.V. test can be used to prove if a stone is a real diamond, it also means that the diamond is, at most, 20% less valuable. The U.V. test is not always a good indicator if a diamond is real; higher quality diamonds usually don’t have a blue fluorescent color.
6. Use magnifying lens to determine if a diamond is genuine. There are a few qualities to help with identifying a real diamond:
- The facets or cuts on the top of the diamond should be joined and sharp, not rolled.
- The girdle should be faceted and frosty. If it’s waxy and slick, then it’s not a diamond.
- With the lens, check to see if there are flaws on the diamond, such as small cracks and pinpoints. Finding these inclusions is difficult on a fake.
- If there’s a 10k, 14k, 18k, 585, 750, 900, 950, PT, Plat stamp on a setting, then it means that the gold or platinum is real, which also means the diamond in it is most likely real. If there’s a C.Z. imprint on a setting, then it means the the center stone is a fake.
If you want to be 100% assured that a diamond item of yours is real, you can hire a professional appraisal by finding one in your Yellow Pages phonebook under “Jewelry” or online and calling him or her to check your diamond. If you decide to contact a professional appraisal, remember to ask them these two important questions:
- “Will I be able to stay with my jewelry while you test it or will you be taking it elsewhere for testing?” – If the professional appraisal says that he or she will take it elsewhere, then it’s time for you to look for another appraiser to avoid any risks.
- “What is the fee for the appraisal?” – In most cases, $50-$75 is a common and reasonable fee for a professional appraisal.