Diamond testing machines, also known as diamond testers, are considered one of the most accurate and reliable instruments for testing the authenticity of diamonds.
These machines work by measuring specific properties unique to diamonds.
There are two main types of diamond testers: thermal testers and electrical conductivity testers.
Thermal testers measure the heat transfer of a gemstone.
Electrical conductivity testers measure the ability of a gemstone to conduct electricity.
Both of these properties are distinct characteristics of diamonds.
However, it's important to note that diamond testers are not 100% accurate.
Some other stones, such as moissanite and white sapphires, do not show any resistance and can potentially pass as diamonds when tested with these machines.
More advanced instruments that use infrared radiation can help distinguish between different types of stones with similar thermal properties, but they tend to be more expensive than basic diamond testers.
In terms of how diamond testers work, they typically bombard a diamond with specific types of radiation (which are not harmful to humans) and analyze the response of the stone.
Through spectroscopic analysis, certain tell-tale signs of lab-grown diamonds or other imposters can be detected.
For example, growth lines in CVD diamonds can be seen under a DiamondView machine.
These machines can provide a report from a gem lab, such as the Gemological Institute of America (GIA), to determine with certainty whether a diamond is natural or lab-grown.
When shopping for diamonds, it's recommended to use a diamond tester with a good reputation to minimize the chances of false readings.
However, it's advisable to always test an unknown gemstone against a known diamond to ensure accuracy.
Diamond testers can accurately identify fake diamonds or cubic zirconia, as these stones do not have high enough thermal conductivity to pass the test.
Additionally, some diamond testers have metal detection features to alert the user if accidental contact with a nearby metal occurs, which could affect the test results.
Magnification is another useful feature in some diamond testers, as it allows for a more detailed inspection of the diamond's surface and internal characteristics.
It's worth noting that moissanite, a man-made stone that closely resembles diamonds in appearance and properties, can be detected by some diamond testers.
However, it's important to consult the manual or contact the manufacturer to ensure compatibility with moissanite testing.
When purchasing a diamond tester, factors to consider include usability and comfort, especially if you plan on testing multiple lab-grown or mined diamonds.
It's important to invest in a diamond tester that is durable and will maintain its usability over time.
Continue exploring, consult our experts
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