Yes, there are machines specifically designed to test diamonds, particularly to differentiate between natural earth-mined diamonds and lab-created or synthetic diamonds.
Summary of the Answer: There are advanced diamond testing machines that can distinguish between natural and synthetic diamonds. These machines use sophisticated technology to analyze the thermal conductivity and other properties of diamonds, helping to identify their origin and authenticity.
Detailed Explanation:
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Technology and Functionality: The machines mentioned, such as the CVD diamond testing machine, are designed to differentiate between natural earth-mined diamonds (types Ia, Ib) and lab-created or synthetic diamonds (types IIa, IIb, CVD, or HPHT). These machines utilize advanced techniques like thermal conductivity testing, which involves a pair of battery-powered thermistors. One thermistor heats up while the other measures the temperature of the copper tip. If the stone is a diamond, it conducts thermal energy rapidly, causing a measurable temperature drop. This test is quick, taking about two to three seconds.
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Detection of Synthetic and Treated Diamonds: With the advent of new laboratory techniques like HPHT and CVD, synthetic and treated diamonds have become increasingly difficult to distinguish from natural ones. The testing machines are equipped to detect these enhancements and synthetics, flagging them as non-natural. This is crucial in an industry where technology can easily deceive even experienced dealers.
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Versatility and Precision: These diamond testers can test both mounted and loose diamonds, covering a color range from D to J. They use ultra-violet short waves instead of just heat and electrical conductivity, enhancing their precision and ability to detect synthetic diamonds that might fool normal testers.
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Spectroscopic Analysis: Some machines, like the DiamondView, employ spectroscopic analysis, bombarding the diamond with specific types of radiation and analyzing the output. This method can reveal microscopic growth lines in CVD diamonds, indicating their synthetic nature. This level of detail helps in providing a definitive report on whether a diamond is lab-grown or natural.
In conclusion, the availability of these advanced diamond testing machines is essential in maintaining the integrity of the diamond industry, ensuring that consumers and dealers can accurately identify the authenticity and origin of diamonds.
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