7 Ways To Spot Fake Diamonds in Texas

Buying Diamonds is something people tend to do either for fun, a gift, or an investment. There are a ton of wholesale diamond dealers in Texas that sell diamonds. But receiving the item, have you ever been suspicious that a loose diamond wasn’t real? Wondered if the diamond centerpiece in your jewelry is genuine? How can you tell if the diamond is real? Here are 7 ways to spot fake diamonds in Texas.

1. The Water Test

What you would need:

• The loose stone
• A glass of water

How it works:

• Drop the loose stone into the water

If the stone sinks to the bottom when you drop it in the water, then it is a real diamond

because loose diamonds are so dense that they would sink immediately.  Many fake diamonds are made out of glass and quartz that would either float or not sink as quickly because compared to real diamonds, they are less dense.

2. The Conductivity Test

What you would need:

• Take the stone to a local jeweler
• Leave the house

How it works:

• There is a rise of moissanite in today’s diamond market, which is why the majority of the jeweler now have an electricity testing tool on hand

Diamonds are resistant to electricity, so testing a loose stone for electric conductivity is very helpful. It is very hard to tell diamonds and Moissanite apart because they have the same level of thermal conductivity, but moissanite will conduct electricity, while diamonds would not.

3. The Magnification Test

What you would need:

• A diamond that you know is genuine
• A magnifying glass with 10 times magnification or higher
• Your questionable stone

How it works:

• Look at your questionable stone under the microscope
• Loos at the genuine diamond and compare the differences

If you notice that the diamond has internal or external flaws, it is genuine. If the other

stone is cubic zirconia or moissanite, then it would have no internal, and probably external, flaws. This is because diamonds are natural rocks that were formed in the earth, Cubic zirconia and moissanite, on the other hand, are grown in labs and they are not subjected to environmental pressures that diamonds get while forming.

4. The Black Light Test

What you would need:

• The stone
• A strong UV light

How it works:

• Hold the stone under the UV light
• See if the color seems to change at all

If the color of the stone emits a bluish glow, then it is most likely a real diamond.

5. The Temperature Test

What you would need:

• A glass of very cold water
• A lighter or a candle flame
• The loose stone in question (don’t do this if it is in a piece of jewelry)
• A pair of tweezers to hold the stone with

How it works:

• Hold the stone up with the tweezers
• Heat it over the lighter or the candle for about 30 to 45 seconds
• Drop it immediately into the icy water

If the stone does not react, then it is a real diamond. After all, they do not react to this

extreme temperature change because they are made out of extremely strong material. Other fake diamonds, like those made of glass, cubic zirconia, or quartz, on the other hand, will break or shatter during the test.

6. The Newspaper Test

What you would need:

• A newspaper
• The stone that you are testing

How it works:

• Place the stone on top of the newspaper
• See if you can read the words on the page through it

If you could not see through it, then it is a real diamond, because a real diamond of

decent quality would refract light so intensely that you would not have the ability to see through it. Cubic zirconia, on the other hand, gives you the ability to see right through it because it is more transparent.

7. The Fog Test

What you would need:

• The questionable stone
• Yourself

How it works:

• Go to a relatively cool location
• Blow hot air on the stone

What you are doing here, is that you are trying to surround the stone with warm moist

air, and since diamonds do not retain heat well, your breath won’t create fog on its surface. But if the stone in question fogs up, then it is probably moissanite.

Should you try the scratch test?

There is this test called the “scratch test” where people would think that it is the easiest way to test a diamond. This test is when you simply scratch the loose stone against a mirror and if the stone is hard enough to scratch the mirror, then it is probably a real diamond. 

This test proves inaccurate in terms of the Mohs scale. It is a scientific measurement of mineral hardness, the glass is rated a 5.5, and diamonds are a 10 since they are the hardest mineral. So yeah, genuine diamonds would scratch the mirror, but so would quartz (7), moissanite (9.25), and cubic zirconia (8), the last 2 almost being as hard as a diamond.