Diamonds are known for their beauty, rarity, and timeless elegance. With the rise of alternatives like lab grown diamonds and cubic zirconia, many people wonder if these two options are the same. At Roset Jewellers, we believe in educating our customers about the fine details of their jewellery choices. So, let's dive deep into the question: Are lab grown diamonds cubic zirconia?
What Are Lab Grown Diamonds?
Lab grown diamonds are real diamonds. They are created in a laboratory environment using advanced technology that mimics the natural process of diamond formation. The result is a diamond that has the same physical, chemical, and optical properties as a natural diamond. Lab grown diamonds are available in various cuts, colors, and carat weights, making them a stunning option for luxury jewellery.
- Authenticity: Lab grown diamonds are not imitations. They are real diamonds with the same brilliance, fire, and sparkle you would expect from a mined diamond.
- Technology: Two common methods are used to create lab grown diamonds—High Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD). Both processes produce diamonds that are virtually identical to those formed naturally over millions of years.
What Is Cubic Zirconia?
Cubic zirconia (CZ), on the other hand, is a diamond simulant. It is made from zirconium dioxide, a synthetic material designed to look like a diamond but with very different properties. While cubic zirconia can resemble the appearance of a diamond to the untrained eye, it is an entirely different stone in terms of durability, brilliance, and value.
- Appearance: Cubic zirconia may look like a diamond at first glance, but its sparkle and brilliance are not as lasting. It is often used in fashion jewellery due to its affordability.
- Cost: Cubic zirconia is much less expensive than diamonds, including lab grown diamonds. It is a popular choice for costume jewellery or temporary pieces where budget is a primary concern.
Key Differences Between Lab Grown Diamonds and Cubic Zirconia
It’s essential to understand the key differences between lab grown diamonds and cubic zirconia, particularly if you are investing in a significant piece of jewellery.
1. Composition
- Lab Grown Diamonds: Made from carbon, lab grown diamonds are identical to natural diamonds in terms of their atomic structure. This means they are as hard, durable, and brilliant as natural diamonds.
- Cubic Zirconia: Cubic zirconia is composed of zirconium dioxide and lacks the carbon structure of a diamond. While it may mimic the appearance of a diamond, it is a completely different material.
2. Durability
- Lab Grown Diamonds: Like natural diamonds, lab grown diamonds are among the hardest substances on earth, ranking 10 on the Mohs scale of hardness. This makes them incredibly resistant to scratching and ideal for everyday wear, particularly in engagement rings and fine jewellery.
- Cubic Zirconia: Cubic zirconia ranks around 8.5 on the Mohs scale, making it softer than diamonds. Over time, CZ can become scratched, lose its shine, and show signs of wear, especially when used in pieces worn frequently.
3. Brilliance and Sparkle
- Lab Grown Diamonds: Lab grown diamonds exhibit the same brilliance and fire as natural diamonds. The intricate facets of a well-cut diamond reflect light beautifully, giving it that unmistakable sparkle.
- Cubic Zirconia: While cubic zirconia can have an impressive sparkle when new, it doesn’t maintain the same level of brilliance as a diamond over time. CZ can appear glassy and lacks the depth of fire and sparkle that comes from the natural light dispersion of a diamond.
4. Longevity and Value
- Lab Grown Diamonds: Lab grown diamonds retain much of the value of natural diamonds. They are seen as a long-lasting investment that can be passed down through generations, just like natural diamonds.
- Cubic Zirconia: Cubic zirconia, being much less durable, is typically used in fashion or costume jewellery and does not hold long-term value. It is not considered an investment stone.
Choosing the Right Stone for You
Choosing between lab grown diamonds and cubic zirconia involves several considerations, from the occasion and significance of the jewellery to budget and long-term value. Both stones have unique qualities, but understanding their differences can help you make an informed decision based on your needs and preferences.
1. Occasion and Significance
- Lab Grown Diamonds: These are ideal for meaningful milestones such as engagements, weddings, and anniversaries. Since lab grown diamonds are real diamonds, they carry the same emotional significance and symbolism as natural diamonds, making them perfect for pieces meant to last a lifetime.
- Cubic Zirconia: CZ is better suited for more temporary occasions or fashion jewellery. While beautiful at first glance, it’s typically chosen for pieces with less emotional significance. It’s a great option for trendy jewellery or accessories that you might not wear every day or for long-term keepsakes.
2. Budget Considerations
- Lab Grown Diamonds: These diamonds offer excellent value for their price, being less expensive than natural diamonds but still more durable and lasting than cubic zirconia. If you’re looking for a high-quality piece that will stand the test of time, lab grown diamonds are an ideal middle ground between quality and cost.
- Cubic Zirconia: Cubic zirconia is far less expensive and is a perfect choice for those seeking affordable fashion jewellery. However, the low cost reflects its shorter lifespan and lack of long-term brilliance. It’s a great choice for pieces that won’t see daily wear or if you're looking for something fun and budget-friendly.
3. Durability and Longevity
- Lab Grown Diamonds: Like natural diamonds, lab grown diamonds are incredibly durable, ranking 10 on the Mohs hardness scale. This makes them perfect for engagement rings, earrings, or bracelets that are worn daily and need to withstand the demands of everyday life.
- Cubic Zirconia: Cubic zirconia is softer, scoring 8.5 on the Mohs scale. It is prone to scratching and losing its lustre over time, particularly with daily wear. If you’re choosing a piece that you’ll wear often, CZ may require replacement or polishing after a few years.
4. Brilliance and Appearance
- Lab Grown Diamonds: Lab grown diamonds exhibit the same brilliance and sparkle as natural diamonds. With the right cut, they display the fire and brilliance that make diamonds so desirable. They’re a great choice for those who want their jewellery to maintain its shine and beauty over the years.
- Cubic Zirconia: While CZ may appear brilliant at first, it has a higher light dispersion rate, which can result in a "rainbow" effect that differs from a diamond’s sparkle. Over time, CZ loses its shine as it gets scratched or dulled by wear.
5. Long-Term Value
- Lab Grown Diamonds: Lab grown diamonds hold value over time, similar to natural diamonds. They make excellent heirlooms that can be passed down through generations, ensuring that the emotional and monetary investment is preserved.
- Cubic Zirconia: CZ, while affordable, holds little to no long-term value. It is not considered a precious stone and is generally not seen as an investment. While great for fashion pieces, it’s not the right choice for those seeking jewellery that will stand the test of time.
6. Personal Style and Preference
- Lab Grown Diamonds: Perfect for those who appreciate classic and timeless designs. The versatility of lab grown diamonds allows for a range of cuts, settings, and styles that will always remain in fashion.
- Cubic Zirconia: If you love experimenting with trendy designs and don’t mind swapping pieces regularly, CZ can be a fun and cost-effective way to accessorize. However, keep in mind that its sparkle and appeal may fade over time.
Are Lab Grown Diamonds and Cubic Zirconia the Same?
In conclusion, lab grown diamonds are not cubic zirconia. They are two entirely different gemstones with distinct properties, durability, and value. While cubic zirconia is a cost-effective option for fashion or temporary jewellery, it doesn’t have the longevity, brilliance, or value of a lab grown diamond. Lab grown diamonds, on the other hand, are real diamonds, offering the same beauty, luxury, and lasting quality as natural diamonds at a more accessible price.
Conclusion
When choosing between lab grown diamonds and cubic zirconia, it’s essential to consider the occasion, durability, and long-term value of the jewellery. Lab grown diamonds offer a blend of affordability and luxury, making them the perfect option for important life milestones, while cubic zirconia is a cost-effective choice for fashion-forward or temporary pieces.
At Roset Jewellers, we believe in providing our customers with the finest lab grown diamonds that capture the timeless beauty of natural diamonds. Whether you’re shopping for an engagement ring, a special gift, or a keepsake, our team is here to help you find the perfect stone that suits your style and budget.