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4 Ways To Identify A Raw Diamond


Tips For Identifying A Raw #diamond
It is hard to find rough diamond while walking out there. Seemingly, they are rare and are primarily found in mining sites, but it doesn’t mean that you will never come across one. It’s not easy to separate them from refined diamonds, but here are the things you can focus on to identify the raw diamonds.

1. Focus On The Gravity
If you are looking for a rough diamond, you should know about the specific gravity of these stones. All #diamonds have a gravity ranging from 3.5 to 3.53 g/ml, which is the ratio of the density of the stone to a pure liquid having a thickness of 1 g/ml. However, be careful not to confuse this gem’s identity with quartz with a gravity of 2.6 to 2.7.

With this gravity, it’s easy to separate the raw diamond from other diamonds. Additionally, you can use this aspect to separate diamonds from other gemstones using shaker tables. Below is a procedure of how to use this tool:

Fill a clear and normal-sized drinking glass and fill it with water to a 3/4 level.
Then drop the stone you have into the glass.
If it sinks, the stone is a genuine raw diamond. But if it floats, it’s fake.
2. Test For The Thermal Absorption


Among all gemstones, diamonds are the best heat absorbers. You can confirm this on your stone using diamond testers. These tools are hand-held and have a metal head that comes in contact with the diamond being tested.

Have you ever wondered how it works? It provides a small amount of heat and measures how fast the stone takes in the heat. A good tester will tell if your stone is a raw diamond or just another beautiful stone.

Every reputable jewelry shop has a diamond tester. So, you don’t have to buy this item to see if your stone is a genuine diamond.

3. Do A Hardness Test
It’s without a doubt that every diamond, rough or refined, is the hardest among all gemstones. This gem has the highest rating on the Mohs scale of hardness which ranks minerals from softest to hardest. But if you have a stone, how will you test for its hardness level?

Well, don’t scratch a glass using the suspected stone. On the Mohs scale, glass has a rating of 5.5 which means that most stones looking like a diamond can scratch it. Additionally, they are more common compared to diamonds, so the test will not be reliable.

To get good results, scratch corundum. Surprisingly, the stone has a rating of 9 on the Mohs scale and includes ruby and sapphires. If your stone scratches corundum, there are high chances that it’s a diamond.
However, there are some metals like cubic zirconia and moissanite which are scratch-resistant. So, the hardness test is not as reliable as other tests like the thermal test.

4. Use The Ultraviolet (U. V) Light Test
While checking for the originality of your gem, know that 30 percent of diamonds glow blue under a shortwave U. V light. It will happen after you specially place a diamond under the U. V light. However, some will shine and produce other colors like yellow, red, or orange, making this method not fully reliable.


With all these tests, it’s best to use the tester tool for reliable results. Also, other methods can use to know if your stone is a raw diamond. Below are some of the ways:

Heat the stone to see if it will break. If it doesn’t, there is a high possibility that it’s a raw diamond.
Use a fog test.
Look for the crystal form of the diamond.

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