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  • 6 min read

Diamonds have long been regarded as the epitome of luxury and elegance, but what if there was a more affordable alternative that could rival their brilliance? Enter cubic zirconia. In this captivating article, we'll take a closer look at the fascinating debate of cubic zirconia vs diamond. From their composition and appearance to their durability and cost, we'll explore the key factors that make these gemstones unique. Whether you're a savvy shopper or a jewelry enthusiast, this article will provide valuable insights into the world of affordable yet stunning jewelry options.

What Is Cubic Zirconia?

Cubic Zirconia (CZ) is a synthetic gemstone that closely resembles a diamond in appearance. It is made from zirconium dioxide, a crystalline material that is optically flawless and colorless. Through a process called crystal growth, CZ is created in a laboratory to mimic the natural formation of diamonds. The result is a gemstone that exhibits remarkable brilliance and clarity. While cubic zirconia may not possess the same level of hardness and durability as diamonds, it offers an affordable alternative for those seeking the look of a diamond without the hefty price tag. With its affordability and stunning visual appeal, cubic zirconia has become a popular choice in the world of jewelry.

What Is a Diamond?

A diamond is a naturally occurring gemstone that is formed deep within the Earth's mantle under intense heat and pressure. Composed of carbon atoms arranged in a crystal lattice structure, diamonds are renowned for their exceptional hardness, making them the hardest substance known to man. Diamonds come in a variety of colors, with the most prized being colorless or near-colorless. Known for their unparalleled brilliance and sparkle, diamonds have long been associated with luxury, prestige, and enduring beauty. Due to their rarity and desirability, diamonds are often considered a symbol of love and commitment, making them a popular choice for engagement rings and other fine jewelry.

Cubic Zirconia vs Diamond What’s The Difference?


Cubic zirconia is a synthetic gemstone made from zirconium dioxide, while diamonds are naturally occurring gemstones composed of carbon atoms.


While both cubic zirconia and diamonds can exhibit brilliance and sparkle, diamonds have a unique ability to reflect and refract light, resulting in a captivating play of colors. Cubic zirconia, on the other hand, may have a slightly different visual appearance and may lack the same level of fire and brilliance as diamonds.


Diamonds are the hardest known substance, ranking 10 on the Mohs scale of hardness, while cubic zirconia ranks at 8-8.5. This means that diamonds are more resistant to scratches and are generally more durable than cubic zirconia.

Rarity and Value

Diamonds are rare and highly valued gemstones, which contributes to their higher price tag. Cubic zirconia, being a synthetic gemstone, is more abundant and therefore more affordable.

Prestige and Symbolism

Diamonds have long been associated with luxury, prestige, and enduring love. They are often chosen for engagement rings and other significant jewelry pieces. Cubic zirconia, while visually similar, does not carry the same level of prestige or symbolism.


Diamonds are known for their durability and ability to withstand the test of time. Cubic zirconia, although durable, may show signs of wear and dullness over time.

Are All Cubic Zirconia Man-Made or Lab-Grown Diamonds?

No, not all cubic zirconia are man-made or lab-grown diamonds. Cubic zirconia is a synthetic gemstone that is specifically created in a laboratory using a process called crystal growth. It is designed to mimic the appearance of a diamond but is chemically and structurally different. On the other hand, lab-grown diamonds are real diamonds that are grown in a laboratory using advanced technology that replicates the natural diamond formation process. Lab-grown diamonds have the same chemical composition and physical properties as natural diamonds. While both cubic zirconia and lab-grown diamonds are created in a lab, they are distinct in terms of their composition and properties.

What Is The Cubic Zirconia Refractive Index?

The refractive index of cubic zirconia is approximately 2.15-2.18. Refractive index refers to the measure of how light is bent or refracted as it passes through a material. In the case of cubic zirconia, this value indicates the gemstone's ability to bend light and create the optical effects of brilliance and sparkle. The refractive index of CZ is relatively high compared to other gemstones, including diamonds, which contributes to its impressive visual appearance and ability to mimic the sparkle of a diamond.

Are Cubic Zirconia Considered Diamond Simulant?

Yes, cubic zirconia is considered a diamond simulant. A diamond simulant is a material that is used to imitate the appearance of a diamond. Cubic zirconia is one of the most popular and widely used diamond simulants due to its close resemblance to a diamond in terms of its brilliance and clarity. It is often used as an affordable alternative to diamonds in jewelry, allowing individuals to achieve the look of a diamond without the high cost. While CZ may not possess the same physical and chemical properties as a diamond, it is valued for its ability to replicate the visual characteristics of a diamond, making it a popular choice for those seeking an affordable alternative to genuine diamonds.

Does CZ Sparkle Like a Diamond?

Yes, cubic zirconia (CZ) does sparkle like a diamond. CZ is known for its exceptional brilliance and fire, which are the characteristics that give diamonds their renowned sparkle. The high refractive index of cubic zirconia allows it to bend and reflect light in a way that creates dazzling flashes of color and brilliance. While the sparkle of cubic zirconia may not be identical to that of a diamond, it is often difficult to distinguish between the two with the naked eye. This makes cubic zirconia a popular choice for those looking for an affordable alternative to diamonds without compromising on the stunning sparkle that diamonds are known for.

Most Common Jewelry Items Made With Cubic Zirconia

  1. Cubic Zirconia Rings: Cubic zirconia is commonly used as a diamond alternative for an engagement ring, wedding band, and fashion ring. Its affordability and visual similarity to diamonds make it a popular choice for those seeking stunning and budget-friendly ring options.
  2. Cubic Zirconia Earrings: CZ earrings come in a variety of styles, including studs, hoops, and dangle earrings. They offer a glamorous and eye-catching look without the high price tag of diamond earrings.
  3. Cubic Zirconia Necklaces: CZ necklaces are available in various designs, such as pendants, solitaires, and statement necklaces. They can add a touch of elegance and sparkle to any outfit, making them a versatile and affordable jewelry option.
  4. Cubic Zirconia Bracelets: From delicate tennis bracelets to bold bangle designs, cubic zirconia bracelets offer a wide range of styles. They can be worn alone or stacked with other bracelets to create a fashionable and personalized look.
  5. Cubic Zirconia Pendant Necklaces: CZ pendant necklaces feature a single cubic zirconia stone suspended from a chain. They are timeless and elegant jewelry pieces that can be worn daily or for special occasions.


In conclusion, understanding the differences between cubic zirconia and diamonds is crucial for individuals seeking affordable alternatives to expensive jewelry. While cubic zirconia offers a visually stunning option that closely resembles the brilliance of diamonds, it is important to note that they are not the same in terms of composition, durability, and value. Cubic zirconia provides an accessible and budget-friendly choice for those who prioritize appearance over prestige. However, for those who value the rarity, symbolism, and enduring value of diamonds, investing in genuine diamonds may be the preferred option. Ultimately, the choice between cubic zirconia and diamonds depends on personal preferences, budget constraints, and the desired significance of the jewelry piece. By weighing these factors, individuals can make an informed decision and find the perfect gemstone that aligns with their style, budget, and values.

Final Thoughts

Experience the essence of true luxury with 6 Ice, where craftsmanship and accessibility converge. Our dedicated team of artisans channel their creativity and skill into every jewelry creation, resulting in stunning pieces that are true works of art. We believe that luxury should be within reach for everyone, which is why we offer meticulously crafted jewelry at affordable prices. Discover the captivating world of 6 Ice and embrace the perfect blend of artistry and affordability.