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May 31, 2024 · A real diamond reflects white light extremely well, providing exceptional sparkle. Diamonds also reflect colored light, or fire, in magnificent fashion. If you compare a real diamond to a fake diamond like Cubic Zirconia, you are able to notice a drastic difference in the white and colored light sparkle that the real diamond gives off.
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- Testing Mounted Diamonds. Use the fog test. Put the stone in front of your mouth and fog it like you would a mirror. If it stays fogged for a couple seconds, it’s probably a fake — a real diamond disperses the heat from your breath instantaneously and won't fog up easily.
- Testing Unmounted Diamonds. Look at the stone's refractivity. Diamonds sharply bend, or refract, the light that passes through them, resulting in their strikingly brilliant appearance.
- Testing Professionally. Ask for a heat probe test. The tight, evenly-packed crystalline structure of diamonds makes them disperse heat quickly; thus, real diamonds will not heat up easily.
- Telling Natural Diamonds from Other Stones. Recognize synthetic diamonds. Lab-created or synthetic diamonds are "real" but they are not "natural".
- 2 min
- Thermal Test (The Best Test to Spot a Fake Diamond!) In this video, FAKE and REAL shows you how to use a diamond detector! Video licensed under Creative Commons.
- Facet Doubling. What You'll Need. A jeweler's loupe or magnifying glass and some patience. How to Check for Facet Doubling. For this test, take the loupe and examine the stone closely.
- UV Fluorescence. What You'll Need. A blacklight. How to Check for Fluorescence. In a dark room, shine the blacklight on your gem and see if it fluoresces.
- Newspaper/Dot Test. What You'll Need. A newspaper or a piece of paper with a small dot drawn on it. This test is only appropriate for loose gems, not set ones.
- The Line Test. The line test involves placing the stone on a single black line drawn on paper. The line test is a great way to distinguish a real diamond from a fake.
- Check the weight and size of your diamond. You can check if your loose diamond is real by weighing the stone on gemmological scales. For example, a 5mm round diamond weighs close to 0.50cts (give or take a few points.)
- The breath or fog test. Some diamond experts use a breath test to spot a real diamond from a fake. When you breathe slowly on the surface of a diamond, moisture beads finely over the stone, disappearing very rapidly.
- Touching a rock with your tongue. Not strictly tasting the stone, some seasoned experts can tell a real diamond by putting it against their tongue. This test relates to the ability of diamonds to transfer heat.
Jul 27, 2020 · A quick and easy way to tell if your diamond is real or not — put the stone in front of your mouth and fog it up with your breath. If it clears up after a second or two, then it's real, but if karat stays fogged for three seconds or more, then you're looking at a fake.
- Cheryl Roberts
2 days ago · A real diamond will sink to the bottom because of its high density. Fake diamonds or lighter stones may float or sink more slowly. While this isn’t a definitive test, it can tell you whether your diamond is real or fake. The Scratch Test. Diamonds are the hardest known natural material, ranking a 10 on the Mohs hardness scale.
In this video jewelers Bobby White and Tommy White are going to show you 5 ways to tell if a diamond is fake or real.Shop the Bobby White - https://www.bobby...
- 5 min
- 1.4M
- Bobby White