As straightforward as it sounds, fill a glass of water at home to roughly three-quarters full. Separate the stone so that it is loose, and drop it into the water. Diamonds are highly dense and a genuine gem will sink to the bottom – every time. If it hovers to the surface or only partially sinks, then it is a replica.
By holding a diamond close to a source of light, such as a flashlight, you can tell whether or not it's real. Watch closely for the shimmers of light that shine from the stone. A real diamond will reflect light easily, and provide you with a disco ball or rainbow-like display.
27, 2013 – Owners of Android phones and tablets like the Kindle Fire and Samsung Galaxy can now benefit from GIA's (Gemological Institute of America) free interactive diamond app for consumers and retailers, available in both English and Simplified Chinese.
What do the Test Results Mean? A diamond tester will only test positive for diamond and moissanite. Synthetic moissanite has been used as a gemstone only since the 1990s, so if your piece is from an earlier era, it's definitely a diamond if it passes this test!
A diamond should have a clear, bright yellow or white color. A crystal will be off-white or cloudy looking. Yellow diamonds are becoming more and more popular, especially in the wedding ring market. These diamonds look like pearls and are generally not as expensive as white diamonds.
A sparkle test is quick and easy to do since all you need are your eyes. Simply hold your diamond under a normal lamp and observe the bright shimmers of light bouncing off the diamond. A real diamond provides an exceptional sparkle since it reflects white light extremely well.
Diamond testers are always accurate. However, the thermal diamond testers can be faulty when testing moissanite because it has a similar heat conductivity rate to natural diamonds. The other testers will work because moissanite has different electrical conductivity rates than natural diamonds.
KASSOY's selection of electronic diamond testers allows users to quickly identify whether a stone is a diamond or not.
The way that diamonds reflect light is unique: the inside of a real diamond should sparkle gray and white while the outside should reflect a rainbow of colors onto other surfaces. A fake diamond, on the other hand, will have rainbow colors that you can see inside the diamond as well.
Genuine diamonds do not sparkle in rainbow colors inside of the stone. Instead, the inside of real diamonds sparkles in tones white and gray. The play on light in the diamond is brilliance. One factor that determines a diamond's level of brilliance is the cut.
An ideal cut diamond shows only a few intensely bright flashes in direct sunlight. A diamond that actually looks good in sunlight splits those few flashes up into ten or twenty smaller sparkles.
If the small stones on your diamond engagement ring are between 1 and 2 points (0.01-0.02 carats), it may be appraised at a price range of $300 to $700 per carat. Larger chips or stones at 0.10 carats may result in you being able to get $1000 or more for your jewelry if the diamonds score high on clarity and color.
True diamonds have high density and should quickly sink to the bottom of the glass. Fake diamonds are not as thick, and therefore, more likely to float in water. This test is not always foolproof. Some materials that make up fake diamonds, such as cubic zirconia and moissanite, can sink if they are heavy enough.
The first step is to check for any inclusion on the stone with your bare eyes. If you're unable to see any inclusions with your bare eyes, then use a magnifying glass of at least 10X magnification to find out if the gemstone contains any inclusions. If you found any, then they are real gemstones.
If you're serious about finding out whether your diamond is real or fake, you can put the stone through a fire test. Use a lighter to light the stone for approximately 30 seconds before dropping it in cold water. If it's a real diamond, the stone will remain unharmed, but if it's fake it will shatter to pieces.
A diamond placed in water, the critical angle gets the increase that causes the lower number of reflection. Thus the diamond under water is sparkle less than in air.
Visit A Trusted Jeweler
Many jewelers will appraise your stone free of charge and experts will often be able to tell immediately if your diamond is authentic or not. If your stone came with a certificate, your jeweler should be happy to take a look at it and tell you whether it is from a trustworthy source.
If LED lights up to the red zone with three periodic bees, the stone being tested is a diamond. If LED lights up only to the green and/or yellow zone, then the stone is a stimulate or non-diamond.
Diamond professionals use the grading system developed by GIA in the 1950s, which established the use of four important factors to describe and classify diamonds: Clarity, Color, Cut, and Carat Weight. Diamonds can be fashioned into a variety of shapes and still be beautiful. These are known as the 4Cs.
Diamond Fog Test
Take a big breath, as if you are trying to fog up a mirror. As you breathe onto the stone, you are looking to see if the stone clears up or remains cloudy. The moisture and heat in our breath create a fog, and if the stone is in fact a diamond, the diamond will disperse the heat very quickly.
There is nothing that can scratch a diamond except another diamond. A mineral like talc, on the other hand, is a 1 on the scale. You could scratch it with any hard material, even your fingernail. Natural talc is one of the softest minerals in the world.
Yes, some diamond simulants can pass a diamond tester.
For example, moissanite, a man made gem, may pass as a diamond on a standard tester pen. This is because moissanite also has very high thermal conductivity! Other diamond simulants, such as CZ, will not pass the tester.