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Lab-Grown Diamond vs. American Diamond: Which is Best for Jewelry & Holds More Value

Lab-Grown Diamond vs. American Diamond: Which is Best for Jewelry & Holds More Value

Lab-grown diamonds are real, durable, and eco-friendly, ideal for fine jewelry. American diamonds (CZ) are affordable but less durable, best for fashion pieces. Choose lab-grown for long-term value, CZ for budget-friendly style.

Choosing the perfect diamond for your jewelry can be exciting yet confusing, especially with so many options available. Two popular choices today are lab-grown diamonds and American diamonds (also known as cubic zirconia or CZ). But which one is better for jewelry, and which holds more value?

In this guide, we’ll compare lab-grown diamonds vs. American diamonds in terms of quality, durability, price, and value retention to help you make the best decision for your jewelry needs.

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1. What is a Lab-Grown Diamond?

Lab-grown diamonds are real diamonds created in a controlled laboratory environment using advanced technology that replicates the natural diamond-growing process. They have the same chemical, physical, and optical properties as mined diamonds but are more affordable and eco-friendly.

Pros of Lab-Grown Diamonds:

  • Identical to Natural Diamonds – Same brilliance, hardness (10 on Mohs scale), and sparkle.

  • More Affordable – Typically 30-50% cheaper than mined diamonds.

  • Ethical & Eco-Friendly – No mining involved, reducing environmental impact.

  • Great for Engagement Rings & Fine Jewelry – High durability and long-lasting beauty.

Cons of Lab-Grown Diamonds:

  • Lower Resale Value – Unlike natural diamonds, they depreciate faster.

  • Still Expensive Compared to CZ – More costly than American diamonds.

 

2. What is an American Diamond (Cubic Zirconia)?

"American Diamond" is a common term for cubic zirconia (CZ), a synthetic gemstone that resembles a diamond but is made from zirconium dioxide. While CZ looks similar to diamonds, it lacks the same durability and brilliance.

Pros of American Diamonds (CZ):

  • Extremely Affordable – Much cheaper than lab-grown or natural diamonds.

  • Good for Fashion Jewelry – Ideal for occasional wear and trendy pieces.

  • Wide Variety of Colors – Available in different shades.

Cons of American Diamonds (CZ):

  •  Less Durable – Softer (8-8.5 on Mohs scale), prone to scratches and cloudiness over time.

  • Not a Real Diamond – Lacks the prestige and brilliance of lab-grown or natural diamonds.

  • No Resale Value – Considered a costume jewelry stone.

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3. Lab-Grown Diamond vs. American Diamond: Key Differences


Feature

Lab-Grown Diamond

American Diamond (CZ)

Composition

Pure carbon (same as natural diamond)

Zirconium dioxide

Hardness (Mohs Scale)

10 (Extremely durable)

8-8.5 (Less durable)

Brilliance & Fire

High (like natural diamonds)

Good, but less than diamonds

Price

30-50% cheaper than natural diamonds

Very Affordable

Resale Value

Low (depreciates)

Almost None

Best For

Engagement rings, heirloom jewelry

Fashion jewelry, occasional wear


4. Which One is Best for Jewelry Lab Grown Diamond or American Diamond?

Choose Lab-Grown Diamond If:

✔ You want a real diamond with maximum brilliance and durability.
✔ You’re buying an engagement ring or wedding jewelry that lasts forever.
✔ You prefer an eco-friendly and ethical option.

Choose American Diamond (CZ) If:

✔ You want affordable, trendy jewelry for occasional wear.
✔ You like changing jewelry styles frequently.
✔ You don’t mind replacing stones over time due to wear and tear.

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5. Which Holds More Value?

  • Lab-grown diamonds hold more value than CZ but depreciate compared to natural diamonds.

  • American diamonds (CZ) have almost no resale value and are considered disposable fashion jewelry.

If you want long-term value, lab-grown diamonds are the better choice. However, if budget is a priority, CZ is a decent alternative for short-term use.

Diahart Diamonds: Chennai's Premier Showroom for Lab-Grown Diamond Jewelry

When it comes to exquisite, ethical, and affordable diamond jewelry, Diahart Diamonds stands out as Chennai’s premier Showroom for lab-grown diamonds. Whether you're looking for a stunning engagement ring, wedding band, or a special gift, our showroom offers a dazzling collection that combines beauty, sustainability, and unmatched craftsmanship.

Why Choose Diahart Diamonds?

1. Certified & Authentic Lab-Grown Diamonds

At Diahart, we provide IGI & GIA-certified lab-grown diamonds, ensuring you get real diamonds with the same brilliance, hardness (10 on the Mohs scale), and fire as natural diamonds—but at a fraction of the cost.

2. Ethical & Eco-Friendly Luxury

Unlike mined diamonds, our lab-grown diamonds are created sustainably, free from environmental harm and unethical mining practices. You can wear your jewelry with pride, knowing it’s conflict-free and responsibly sourced.

3. Unbeatable Prices Without Compromising Quality

Lab-grown diamonds are 30-50% more affordable than natural diamonds, making luxury accessible. At Diahart, we offer competitive pricing without sacrificing quality, so you get the best value for your money.

4. Exquisite Designs & Customization

From timeless solitaires to modern halo designs, our collection features handcrafted jewelry that suits every style. We also offer customization options, allowing you to create a one-of-a-kind piece that reflects your personality.

5. Expert Guidance & Trusted Reputation

Our knowledgeable jewelers are here to guide you through every step—from selecting the perfect diamond to choosing the ideal setting. With transparent pricing and exceptional service, Diahart has earned the trust of Chennai’s jewelry lovers.

Ideas: Check our Other Blogs Jewelry Trends in 2025 Planning Your Perfect Selection

Explore Our Stunning Collections

  • Engagement Rings – Classic, vintage, and contemporary designs

  • Wedding Bands – Elegant and personalized options

  • Earrings & Pendants – Everyday luxury with a touch of sparkle

Visit Us Today:

 Showroom Address: ⁠1, Masilamani St, T. Nagar, Chennai, Tamil Nadu 600017
Contact: 08014885588
Website: https://diahart.com/

6. Final Thought: Which Should You Buy?
  • For Fine Jewelry (Engagement Rings, Wedding Bands, Eternity Pieces)Lab-Grown Diamond (Best quality & durability).

  • For Fashion Jewelry (Earrings, Pendants, Casual Wear)American Diamond (CZ) (Budget-friendly).

At Diahart, we offer exquisite lab-grown diamond jewelry that combines beauty, ethics, and affordability. Explore our collection today to find the perfect piece for every occasion!

💎 Ready to Shine? Browse Diahart’s stunning lab-grown diamond jewelry now