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Can Moissanite Pass the Diamond Tester?
Jul 10, 2024, IceTreasure.com / Janar Kirn
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"Can moissanite pass the diamond tester? The answer might surprise you. This guide explores whether gemology tools can differentiate between diamonds and their simulants. By the end, you'll understand the nuances between diamond and moissanite testing and how to appreciate your moissanite jewelry's beauty fully."


1. What is Moissanite?

Moissanite, discovered by Dr. Henri Moissan in 1893, is a rare mineral composed of silicon carbide (SiC). Due to its rarity, synthetic moissanite is now commonly produced in laboratories.

How Moissanite Differs from Diamond

 
Though moissanite and diamonds appear similar, they differ in key ways.
  • Composition. Moissanite is silicon carbide; diamonds are carbon.
  • Hardness. Diamonds rank 10 on the Mohs scale, while moissanite is 9.25.
  • Brilliance & Fire. Moissanite has a higher refractive index, displaying more rainbow-colored flashes.
  • Color. Moissanite may have a slight yellow or green tint, unlike diamonds.
  • Cost. Moissanite is less expensive than comparable diamonds.

 

Why Choose Moissanite Over Diamond?


Several factors make moissanite a popular diamond alternative.

  • Value. Moissanite offers stunning sparkle at a lower price.
  • Unique Appearance. Its higher refractive index results in a dazzling, colorful brilliance.
  • Eco-Friendliness. Lab-created moissanite has a smaller carbon footprint and is conflict-free.


2. Understanding Diamond Testers

Diamond testers are essential tools for distinguishing diamonds from other stones. They measure a gemstone's thermal and electrical conductivity, fluorescence, and other attributes. Let's break down the various types of diamond testers.

Types of Diamond Testers


  • Diamond Tester Pen
    Function: Uses electrical conductivity.
    Usage: Common in pawnshops and jewelry stores.
    Note: Avoid touching metal to prevent incorrect readings. Press the tip flat against the stone with light pressure for accurate results.

  • Thermal Conductivity Testers
    Function: Measures how quickly a material conducts heat. Accuracy: Effective but may misidentify some diamond simulants.

  • Electrical Conductivity Testers
    Function: Assesses electrical conductivity.
    Accuracy: Diamonds are poor conductors compared to many simulants.

  • Ultraviolet Testers
    Function: Uses UV light to detect diamonds.
    Accuracy: Less reliable as some simulants also fluoresce under UV light.
  • Multi-Testers
    Function: Combines thermal and electrical conductivity tests. Accuracy: More reliable by cross-referencing results from different properties.


3. Can it pass diamond tester?
Moissanite's high thermal conductivity can sometimes register as a diamond on thermal testers. However, it will not pass all testing methods. For accurate identification, multiple tests and professional evaluations are necessary.

Distinguishing Between Diamonds and Moissanite



Several methods can help identify moissanite and diamonds.

  • Visual Inspection: Moissanite's higher brilliance and fire are noticeable with a jeweler's loupe.
  • Inclusions Analysis: Diamonds have distinctive growth characteristics visible under magnification.

  • Electrical Conductivity Test: Moissanite conducts electricity, unlike diamonds.

  • Ultraviolet Light Test: Moissanite and diamonds fluoresce differently under UV light.

  • Refractive Index Test: Measures how much light bends when entering the stone; moissanite has a higher refractive index.

  • Double Refraction Test: Observing through a loupe, moissanite shows a double image of the facets due to its crystal structure.


4. Questions and Answers

Do you get a certificate with moissanite?


Yes, moissanite can be graded using the 4Cs (color, clarity, cut, and carat) and may come with a certificate of authenticity.

Can moissanite scratch a diamond?


No, since diamonds are harder, they cannot be scratched by moissanite. Moissanite, while durable, is not as hard as a diamond.

Will anyone know my ring is moissanite?


To the untrained eye, moissanite may look like a diamond due to its brilliance. However, its distinct rainbow flashes and higher refractive index set it apart.


5. Conclusions

Will moissanite pass diamond tester?


Moissanite can sometimes pass thermal diamond testers but will be identified by other tests.

Importance of Authenticating Diamonds


Value & Resale: Confirms the stone's quality and value.

Fraud Prevention: Ensures the stone is accurately represented. Peace of Mind: Verifies the authenticity of your purchase.


6. Some Recommendations
While moissanite can sometimes pass a diamond tester, it exhibits different chemical, optical, and physical properties from diamonds. For accurate identification, rely on comprehensive testing and certification. Trust Ice Treasure to provide reliable and beautiful moissanite and diamond jewelry, ensuring you get what you pay for and cherish your investment. Explore the Ice Treasure collection today for stunning and certified pieces that meet your style and budget.
Janar Kirn

Janar Kirn, from Tallinn, Estonia, is a distinguished entrepreneur and a co-founder of Ice Treasure. With a career spanning since 2017, Janar has made significant strides in the jewelry industry, founding his first brand from the ground up.

Over the years, he has amassed extensive knowledge in the field, becoming a respected educator and jewelry specialist in Scandinavia. Known for his deep passion and expertise, Janar is dedicated to sharing his insights and experiences with others through this platform.

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