1. Home /
  2. Education /
    3.  
  3. All About Diamonds /
  4. Do Lab-Grown Diamonds Pass a Diamond Tester?

Do Lab-Grown Diamonds Pass a Diamond Tester?

Yes, in most cases, lab-grown diamonds will pass a diamond tester. These diamonds are chemically, physically, and optically identical to mined diamonds, making them indistinguishable under standard testing conditions.
However, some advanced diamond testers may be able to differentiate between the two based on nitrogen content.

How Does a Diamond Tester Work?

A diamond tester is a small, pen-like device with a metal tip used to test a diamond’s authenticity. These testers rely on two main testing methods:

1. Thermal Conductivity Tests

  • The highest purity level, but too soft for most jewellery.

  • When a diamond tester applies heat, genuine diamonds (both natural and lab-grown) dissipate quickly, confirming authenticity.

2. Electrical Conductivity Tests

  • Some testers measure electrical conductivity instead of thermal conductivity.

  • Natural diamonds usually contain trace amounts of nitrogen, which lab-grown diamonds typically lack.

  • If the tester checks only for nitrogen, it may incorrectly flag a lab-grown diamond as something else.

Can a Lab Grown Diamond Be Identified by a Diamond Tester?

Standard diamond testers are not designed to distinguish between lab-grown and mined diamonds.
Since both have the same chemical structure, they will usually test as real diamonds.
However, specialized testing tools can differentiate them.

Advanced Testing: How Experts Identify Lab-Grown Diamonds

The Gemological Institute of America (GIA) developed the DiamondView tool to distinguish between lab and natural diamonds. Here’s how it works:

  • It uses UV lighting to reveal fluorescence patterns.

  • Natural diamonds display straight growth lines.

    • Lab-grown diamonds often show curved growth lines and phosphorescence under UV light.

Can Jewellers Tell the Difference?

A professional jeweller using magnification may identify lab-grown diamonds by spotting unique inclusions. However, without specialized equipment, even experts may struggle to differentiate them from natural diamonds.

FAQ

1. Do lab diamonds pass a diamond tester?

Yes, lab diamonds typically pass a standard diamond tester. However, some advanced testers may detect differences in nitrogen content, which could cause false negatives.

2. Are lab-grown diamonds real diamonds?

Absolutely! Lab-grown diamonds have the same chemical, optical, and physical properties as mined diamonds.

3. Should I get an appraisal for a lab-grown diamond?

Yes, an appraisal is recommended, especially if you plan to insure your lab-grown diamond or sell it in the future.

4. Are there any downsides to buying a lab-grown diamond?

The primary downside is resale value. Since lab diamonds can be produced in large quantities, they lack the rarity of natural diamonds, which may affect long-term value.

Should You Insure Your Lab-Grown Diamond?

While lab-grown diamonds are generally more affordable than mined diamonds, they still hold significant value. Insuring your diamond ensures protection against loss, theft, or damage. Speak with a jewellery insurance provider to explore your options.

Explore Stunning Lab Grown Diamonds at Diamovida

At Diamovida, we offer ethically sourced, high-quality lab-grown diamonds perfect for engagement rings, wedding bands, and fine jewellery. Browse our collection today and find the perfect diamond for your special moment!

Explore Today

Blog posts

View all
  • Do Lab Grown Diamonds Pass a Diamond Tester?

    Do Lab Grown Diamonds Pass a Diamond Tester?

    Kanchan Tanwani

    Yes, in most cases, lab-grown diamonds will pass a diamond tester. These diamonds are chemically, physically, and optically identical to mined diamonds, making them indistinguishable under standard testing conditions.

    Do Lab Grown Diamonds Pass a Diamond Tester?

    Kanchan Tanwani

    Yes, in most cases, lab-grown diamonds will pass a diamond tester. These diamonds are chemically, physically, and optically identical to mined diamonds, making them indistinguishable under standard testing conditions.

  • Luxury Diamond Gifts Under $1000: Stunning and Affordable Ideas

    Luxury Diamond Gifts Under $1000: Stunning and ...

    Kanchan Tanwani

    Whether you're shopping for a special occasion, planning a memorable proposal, or simply treating yourself, countless stunning diamond gift ideas won't break the bank.

    Luxury Diamond Gifts Under $1000: Stunning and ...

    Kanchan Tanwani

    Whether you're shopping for a special occasion, planning a memorable proposal, or simply treating yourself, countless stunning diamond gift ideas won't break the bank.

  • Are Lab Grown Diamonds A Sustainable Alternative To Mined Diamonds?

    Are Lab Grown Diamonds A Sustainable Alternativ...

    Kanchan Tanwani

    The debate between lab-grown and mined diamonds has gained momentum as consumers become more eco-conscious. With sustainability, ethics, and affordability at the forefront, many wonder: Are lab-grown diamonds truly a...

    Are Lab Grown Diamonds A Sustainable Alternativ...

    Kanchan Tanwani

    The debate between lab-grown and mined diamonds has gained momentum as consumers become more eco-conscious. With sustainability, ethics, and affordability at the forefront, many wonder: Are lab-grown diamonds truly a...

1 3
View all