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Until recently, diamond simulants could be distinguished from genuine diamond using a thermal tester like the Mizar Diamond Detective. However, the recent introduction of synthetic Moissanite has necessitated a second test to make sure that what first tests as diamond is not in fact moissanite. The Presidium Moissanite Tester II is designed to perform this test.
The Presidium Moissanite Tester II (PMT II) measures the electrical conductivity of the gemstones directly, determining if the gemstone is a genuine diamond or a moissanite (a diamond simulant).
Presidium recommends the use of the Presidium Moissanite Tester II after a positive test result for diamond is indicated on a thermal conductivity diamond tester (such as the Presidium Diamond Mate Tester).
3 x AAA alkaline batteries (approximately 7 hours of continuous use)
Optimal Operating Temperature: 18°C – 27°C (65°F – 80°F)
Storage Temperature: 10°C – 51°C (50°F – 124°F)
Width: 21mm (0.83 inches)
Height: 30mm (1.18 inches)
Weight (without batteries): 45grams (1.59 oz)
So if you have a legacy thermal diamond tester, you can add this Moissanite Tester to complete your set. Synthetic Moissanite came on the market around the mid 1990's, so any tester built before then probably lacks the extra Moissanite discrimination feature.
This product typically ships within 2 to 3 business days.