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Lab-Grown Diamonds vs. Cubic Zirconia: What’s the Difference?

When shopping for a beautiful and affordable diamond alternative, two of the most popular options are lab-grown diamonds and cubic zirconia (CZ). While they may look similar at first glance, they differ in composition, durability, and value. Understanding these differences can help you make an informed decision between the two.

What Are Lab-Grown Diamonds?

Lab-grown diamonds are real diamonds created in a controlled laboratory using advanced technology. They have the same physical, chemical, and optical properties as natural diamonds because they are made from pure carbon and crystallized similarly.

Key Features of Diamonds:

  • Real Diamonds:

    Unlike cubic zirconia, lab-grown diamonds are chemically identical to mined diamonds.

  • Durability:

    With a Mohs hardness rating of 10, they are the hardest known material, just like natural diamonds.

  • Brilliance and Sparkle:

    They have the same fire and brilliance as natural diamonds, making them nearly indistinguishable to the naked eye.

  • Ethical and Sustainable:

    Lab-grown diamonds are an eco-friendly and ethical diamond option in Canada, as they do not involve mining or unethical labour practices.

What Is Cubic Zirconia (CZ)?

Cubic zirconia is a diamond simulant, which is designed to look like a diamond but not share the same properties. It is made from zirconium dioxide (ZrO₂) and is created synthetically.

Key Features of Cubic Zirconia:

  • Not a Real Diamond:

    Although it mimics a diamond’s appearance, it does not have the same chemical structure.

  • Softness:

    With a Mohs hardness rating of 8-8.5, cubic zirconia is much softer than diamonds and can scratch and dull over time.

  • Lower Cost:

     CZ is one of the most affordable diamond alternatives, making it popular for costume jewellery or temporary rings.

  • Less Brilliance:

    Unlike lab-grown diamonds, cubic zirconia lacks the same depth of sparkle and fire, often appearing more glass-like.

Comparing Diamond Alternatives: Cost, Durability, and Aesthetics

Gemstone cost Durability (Mohs Hardness) Appearance
Sapphire Moderate 9 Rich, colorful hues
Moissanite Affordable 9.25 Exceptional brilliance and sparkle
Morganite Affordable 7.5-8 Soft pink tones
Aquamarine Moderate 7.5-8 Light blue with excellant clarity
Lab Diamonds Comparable to mined 10 Identical to natural diamonds

This comparison can help you weigh costs, durability, and visual impact when choosing your ideal gemstone.

Which One Should You Choose?

Your choice depends on your needs and budget. Lab-grown diamonds are the best option if you’re looking for a high-quality, durable, and ethical alternative to mined diamonds.
They offer sustainable luxury without the ethical concerns of traditional mining. On the other hand, cubic zirconia may be a suitable choice if you’re searching for a low-cost, temporary jewellery piece.
Lab-grown diamonds are superior for engagement rings and fine jewellery that last a lifetime. They provide the brilliance and durability of natural diamonds at a more affordable price, making them perfect for ethically conscious buyers in Canada.

Shop Sustainable Diamonds in Canada

At Diamovida, we offer affordable, ethical, and sustainable lab-grown diamonds. Explore our collection of lab-grown diamond rings, earrings, and more to find the perfect piece for your special occasion.

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