How to tell if a Diamond is real

When buying or assessing jewellery, buyers frequently wonder whether a diamond is real or fake. Since real diamonds are highly prized for their scarcity and brilliance, counterfeit and fraud are common. You can tell whether a diamond is real using a variety of techniques and testing. We’ll go into more detail about these techniques below. Let’s see various methods for how to tell if a Diamond is real.

How to tell if a Diamond is real

How to tell if a Diamond is real

A set of standards called the “Four Cs” is used to assess diamonds. They represent Clarity, Colour, Cut, and Carat. These qualities can help you determine a diamond’s genuineness, even if they cannot infallibly determine whether a diamond is real.

1. Carat : One carat is equal to 200 milligrammes, is used to measure diamonds. If you come across a huge diamond at a reasonable price, exercise caution. The majority of actual diamonds used in jewellery are normally one carat or smaller.

2. Cut : A diamond’s brilliance and shine are influenced by its cut. Real diamonds are frequently meticulously cut to enhance their sparkle. Keep an eye out for sharp facets and superior light reflection.

3. Color : Colours of diamonds range from colourless, which is the most precious, to light yellow or brown. Additionally, some fancy coloured unusual diamonds like blue, pink, or red are available. Diamonds made in a lab or those are artificial may have vivid or unnatural colours.

4. Clarity : When a diamond is described as having clarity, it means that it doesn’t have any inclusions or other external or internal faults. Real diamonds can contain flaws, however these flaws are frequently small and difficult to see with the naked eye.

various Tests for Diamond

1) The Fog Test : As though you were trying to fog up a mirror, breathe on the diamond. A true diamond quickly dissipates heat and won’t trap fog. A fake or low-quality diamond may be present if the diamond remains fogged for a short period of time.

2) The Water Test : Drop the diamond carefully into a glass that has been filled with water. Since they are so heavy and have a high density, real diamonds will sink to the bottom. The diamond is probably fake if it floats or is suspended in the water.

3) The Newspaper Test : On a section of printed text from a newspaper or magazine, place the diamond face down. If the writing can be read through the stone, it is most likely not a genuine diamond. You won’t be able to see clearly through an actual diamond because of how well it reflects light.

4) The Black Light Test : On the diamond, shine a UV or black light. Under UV light, some diamonds fluoresce and give off a blue glow. However, because certain imitation diamonds can also glow, this test alone is not conclusive.

5) The Loupe Test : A little magnifying glass called a jeweler’s loupe is particularly useful. Check the diamond carefully for flaws, inclusions, or blemishes. These may exist in real diamonds, although they are often exceedingly minute and difficult to notice without a magnifying glass.

6) The Heat Test : Diamonds are very good heat conductors. The diamond should be momentarily held over a flame before being lowered into cold water. While most imitations will break or suffer damage from thermal shock, a real diamond won’t be harmed by the heat. For priceless gems, this test is not advised because it can be dangerous.


In conclusion, even though there are several approaches and tests you may use to tell if a diamond is real, combining these methods is frequently the best course of action. The safest approach to determine the authenticity and quality of a diamond is to visit a qualified jeweller or gemologist, especially if it has substantial financial or sentimental worth.

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