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Thinking about buying some jewelry? It’s a great idea to double-check if those shiny stones are real diamonds or just moissanite. I remember when my grandma gave me a ring, claiming it was a family heirloom with a real diamond. Turns out, after a quick test, it was a beautiful moissanite! A good tester can save you from misinformed purchases or family mysteries.
Diamond and moissanite testers are handy gadgets. They help you tell the difference between a real diamond and a moissanite simulant quickly. These tools use heat or electrical conductivity to determine a stone’s authenticity. This article will review some of the best diamond moissanite testers you can buy.
Product Overview / Quick Summary
- New Diamond Selector II: Budget-friendly, easy to use, but may give false positives.
- Kooljewelry Gemstone Tester: Reliable with clear results, but a bit pricier.
- Presidium Gem Tester: High accuracy, tests various gemstones, but has a learning curve.
- MYSWEETY Diamond Tester Pen: Compact and portable, good for quick checks, but less precise.
- RISEPRO Diamond Tester: Professional-grade accuracy, large LCD display, but the most expensive.
Top 5 Best Diamond Moissanite Tester Reviews
1. New Diamond Selector II
The New Diamond Selector II is a popular entry-level option. It’s designed to be simple, so anyone can use it to check stones. It relies on thermal conductivity to distinguish diamonds from other materials.
Pros:
- ✅ Very affordable.
- ✅ Simple to operate with an LED indicator.
- ✅ Lightweight and portable.
Cons:
- ❌ Can be inaccurate with small stones.
- ❌ May give false positives on some materials.
- ❌ No moissanite-specific testing.
Verdict: A good starting point for casual users on a tight budget. Just don’t rely on it for professional evaluations.
2. Kooljewelry Gemstone Tester
The Kooljewelry Gemstone Tester is a step up in terms of reliability. It provides clear and consistent results. This tester is designed to differentiate between diamonds, moissanite, and other common gemstones.
Pros:
- ✅ More reliable than basic models.
- ✅ Clear and easy-to-read display.
- ✅ Tests for both diamonds and moissanite.
Cons:
- ❌ Slightly more expensive than entry-level options.
- ❌ Requires a stable hand for accurate readings.
- ❌ May need calibration over time.
Verdict: A solid choice for hobbyists and those who need more reliable results than a basic tester provides.
3. Presidium Gem Tester
The Presidium Gem Tester is known for its high accuracy. It is a favorite among jewelers. This tester uses thermal conductivity to identify a wide range of gemstones, including diamonds and moissanite.
Pros:
- ✅ Highly accurate and reliable.
- ✅ Tests a variety of gemstones.
- ✅ Durable and well-built.
Cons:
- ❌ Higher price point.
- ❌ Steeper learning curve.
- ❌ Can be sensitive to ambient temperature.
Verdict: A worthwhile investment for serious collectors or professionals who require precise gemstone identification.
4. MYSWEETY Diamond Tester Pen
The MYSWEETY Diamond Tester Pen is a compact and convenient option. It is perfect for quick on-the-go checks. Its pen-like design makes it easy to carry in your pocket or bag.
Pros:
- ✅ Very compact and portable.
- ✅ Simple to use.
- ✅ Affordable.
Cons:
- ❌ Less precise than larger testers.
- ❌ May be prone to false readings.
- ❌ Not ideal for testing very small stones.
Verdict: A handy tool for quick checks when you’re out shopping, but not a substitute for a more accurate tester.
5. RISEPRO Diamond Tester
The RISEPRO Diamond Tester is a professional-grade instrument designed for accuracy and reliability. It features a large LCD display. It provides clear readings for both diamonds and moissanite.
Pros:
- ✅ High accuracy and reliability.
- ✅ Large, easy-to-read LCD display.
- ✅ Durable construction.
Cons:
- ❌ Most expensive option on this list.
- ❌ Larger size may not be as portable.
- ❌ Requires careful calibration.
Verdict: An excellent choice for professionals who demand the highest level of accuracy and reliability in their gemstone testing.
Buying Guide
Choosing the right diamond and moissanite tester depends on your needs and budget. Here are some factors to consider:
- Accuracy: Look for testers with a good reputation for accuracy. Read reviews and compare specifications.
- Ease of Use: If you’re a beginner, choose a tester that’s simple to operate. Models with clear instructions and intuitive interfaces are best.
- Portability: Consider the size and weight of the tester if you plan to use it on the go. Pen-style testers are very portable.
- Budget: Testers range in price from affordable entry-level models to more expensive professional-grade instruments. Set a budget before you start shopping.
- Features: Some testers can identify a wider range of gemstones. Others have features like UV lights for detecting fluorescence.
- Calibration: Check if the tester requires calibration and how easy it is to calibrate. Regular calibration is essential for maintaining accuracy.
Before you buy, remember to read reviews. Checking what other users say can give you great insights into a product’s quality and reliability. Also, consider where you’ll use it most. A small, portable tester is great for taking shopping. But a more accurate, stable one is better for home use.
FAQs
Q: How do diamond testers work?
A: Most diamond testers measure the thermal conductivity of a stone. Diamonds conduct heat very well, while simulants like moissanite do not.
Q: Can a diamond tester tell the difference between a real diamond and moissanite?
A: Yes, many testers are specifically designed to differentiate between diamonds and moissanite. Look for testers that have a moissanite testing function.
Q: Are diamond testers accurate?
A: Accuracy varies depending on the quality of the tester. Higher-end models are generally more accurate, but even affordable testers can be useful for basic checks.
Q: How do I calibrate a diamond tester?
A: Calibration methods vary. Always follow the manufacturer’s instructions. Some testers have automatic calibration features, while others require manual adjustments.
Q: Can I test mounted stones with a diamond tester?
A: Yes, but be careful not to scratch the mounting. Ensure the probe only touches the stone.
Conclusion
Choosing the best diamond moissanite tester depends on your needs. If you just need something quick and cheap, the New Diamond Selector II might do. But if you’re serious about jewelry or a professional, the RISEPRO or Presidium are worth the investment. These testers can help you avoid getting ripped off and ensure you know what you’re buying.
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