Considering how expensive diamonds are, it is essential to make sure you purchase the correct one. As long as diamonds have existed, jewelers have used thermal testers to check their authenticity, and now they have evolved into more straightforward and better diamond testers. 

What is a Diamond Tester?

A diamond tester is a professional small portable electronic device that jewelers or jewelry enthusiasts use to detect natural diamonds. It has a small needle-like tip usually placed in contact with the stone for detection. It then displays or produces an audible signal indicating whether the stone is a natural diamond.

How Do Diamond Testers Work?

The mechanism of a diamond tester is measuring the speed at which heat travels through a stone. On the other hand, electrical detectors utilize electrical conductivity to gauge how fast electric currents move through the stone. The science behind this is that heat and electrical transfer rates differ between natural and manufactured diamonds.

Types of Diamond Testers

With the evolution of diamonds, the thermal tester has been modified into a more efficient diamond testers. UV and electrical conductors testing methods are the most viable among the new techniques. Here are the different types of diamond testers:

• Diamond tester pen
• Thermal diamond testers 
• Fluorescence diamond testing
• Diamond indenter hardness tester
• Electricity-based conductivity testers

How Reliable Are Diamond Testers?

Diamond testers are always accurate. However, the thermal diamond testers can be faulty when testing moissanite because it has a similar heat conductivity rate to natural diamonds. The other testers will work because moissanite has different electrical conductivity rates than natural diamonds. Therefore, if the diamond tester works appropriately, it will detect a natural diamond efficiently.

Can You Cheat A diamond Tester?

Despite being very reliable, they can fail due to different reasons. So, can you cheat a diamond tester? Yes. Here is how:

• If they have a low battery.
• If the diamond has a loose or a bent tip.
• If a moissanite diamond is tested using a thermal diamond since it has a similar thermal conductivity rate to a natural diamond.

Learn More With Martin Jewelers

In conclusion, a diamond is a large investment; hence it is vital to check its authenticity. Are diamond testers accurate? Yes, they are. Diamond testing works when the diamond tester is functional, the diamond is intact, and the testing is done correctly. Lastly, it is advisable to use the electrical diamond tester for accuracy.