Diamond testers are typically not suitable for testing gemstones other than diamonds and moissanite. Moissanite is the only other stone that can be tested with a diamond tester, as it shares similar properties with diamonds. Newer models of diamond testers can distinguish between moissanite, lab-grown diamonds, and natural diamonds. However, for other gemstones like rubies, emeralds, or sapphires, diamond testers are ineffective due to their different thermal and electrical properties.
Detailed Explanation:
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Functionality of Diamond Testers: Diamond testers primarily use thermal or electrical conductivity to identify diamonds. Diamonds have unique thermal conductivity, which is much higher than most other gemstones. This property allows the tester to differentiate diamonds from other materials. Moissanite, being similar in properties to diamonds, also registers on these testers.
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Testing Moissanite: While older diamond testers might not distinguish between diamonds and moissanite, newer models are equipped to differentiate these two. This is crucial because moissanite can often be mistaken for diamonds due to its similar appearance and properties.
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Inaccuracy with Other Gemstones: For gemstones like rubies, emeralds, and sapphires, diamond testers are not effective. These stones have different thermal and electrical properties, which do not trigger a positive response on a diamond tester. For instance, white sapphires and some types of moissanite might not show resistance on basic diamond testers, leading to potential misidentification.
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Advanced Testing Instruments: More advanced instruments that use infrared radiation can distinguish between different types of stones with similar thermal properties. These tools are more expensive but offer a higher level of accuracy in identifying various gemstones.
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Importance of Knowing Limitations: When purchasing a diamond tester, it's crucial to understand its capabilities and limitations. Always verify the tester's accuracy against a known diamond or consult the manufacturer for specific details about what the tester can detect.
In summary, while diamond testers are excellent tools for identifying diamonds and moissanite, they are not designed to test other gemstones like rubies. For comprehensive gemstone testing, more specialized equipment or techniques are required.
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