When determining if a diamond is real or fake, there are two ways to go about it. First, you can get an expert to perform a diamond test using professional equipment. Or, you can do a test at home. Although at-home methods aren’t always reliable, they’re surprisingly accurate.
1. The Scratch Test: All you need is a plate glass and a loose diamond. Place the glass on a table and use your diamond to scratch the surface of the glass. If the diamond scratches the glass, the diamond is real. Please note that the scratch test could damage your diamond, so do this at your own risk.
2. The Transparency Test: All you need is a newspaper and a clean, loose diamond. Spread your newspaper and, on a section of the text, place your diamond face down with the pavilion facing up. If the letters are blurry and you can’t read the text, it means your diamond is real but, if you can read the letters through the diamond, your diamond is fake.
3. The Fire Test: Using a lighter, light the stone for approximately 30 seconds and then drop it in cold water. A real diamond will remain unharmed by the fire, while a fake diamond would shatter to pieces. This is because real diamonds were formed under intense heat and pressure making them able to withstand heat, while fake diamonds made of weaker materials are unable to withstand heat, which makes them expand and then contract.
4. Use a Diamond Scale: If you don’t have a diamond scale at home, take your diamond to your local jeweller so they can weigh the diamond for you. A fake diamond would weigh more than a real diamond of the same size and shape. Why? Cubic zirconia, which is a synthesized material that weighs 55% more than an actual diamond. As such, if your diamond has a grading report or it is certified, you can match it to the weight of the diamond recorded. Please ensure the one you’re using to match the fake diamond is real and has the same shape and size.