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What Are Simulated Diamonds? A Guide to Affordable Brilliance

Simulated diamonds against black background

If you’ve been dazzled by the sparkle of diamonds but hesitated at the price tag, you might have stumbled across the term “diamond simulant.” But what is a simulated diamond, exactly? How do they compare to the real deal? And more importantly, are they the right choice for you?

This diamond guide will take you through everything you need to know about simulated diamonds, from their formation process to their optical properties, value, pros and cons, and even answer those burning FAQs. By the end, you’ll be equipped to make an informed decision for your purchase.

So, What Is a Simulated Diamond? 

A simulated diamond, also known as a diamond simulant, is a stunning diamond alternative designed to mimic the appearance of a real diamond. Unlike natural diamonds, which are formed by the natural diamond formation process over billions of years under the Earth’s crust, or lab-grown diamonds, which are chemically and physically identical to natural diamonds, simulated diamonds are man-made diamonds created from different materials. 

Often referred to as fake diamonds or synthetic diamonds, simulated diamonds are crafted to replicate the look of real diamonds without sharing the same chemical properties.

Are Simulated Diamonds Real Diamonds?

The short answer is no; simulated diamonds are not real diamonds. While they offer a visually appealing and cost-effective alternative, it’s important to understand that diamond simulants are not genuine diamonds but simply stunning replicas that provide the appearance of a diamond at a fraction of the cost.

While they may look like real diamonds to the naked eye, their chemical composition and physical properties are different from those of a natural or lab-grown diamond. However, this doesn’t mean they lack value or aren’t worth considering. 

Common Materials for Diamond Simulants

Simulated diamonds are crafted from a variety of materials, each with unique physical properties. The most popular diamond simulants today include:

  • Cubic Zirconia (CZ): The most popular diamond imitation, Cubic Zirconia, is made from a crystalline form of zirconium dioxide and is known for its high refractive index and clarity, which goes in favor of the diamond 4Cs.
  • Moissanite: Another popular diamond simulant, Moissanite, is known for its exceptional brilliance, although its color can sometimes have a slightly yellowish tint. It’s one of the most sought-after stones for synthetic diamond jewelry made from a silicon carbide crystal.
  • Glass: While not as common, glass can be used as a diamond imitation, though glass diamond simulants are not the most durable option compared to other diamond simulants.
  • White Sapphire: Though it does not offer the distinct brilliance of a diamond, white sapphire offers a less expensive alternative to natural stones with good durability.

Simulated Diamonds vs. Natural Diamonds vs. Lab-Grown Diamonds: What’s the Difference?

Magnifying glass over diamond

When choosing a diamond, it’s essential to understand the differences between all options available. Each type offers unique characteristics in terms of appearance, durability, cost, and value. The table below provides a clear comparison to help you make an informed decision based on your priorities and preferences.

FeatureNatural DiamondsLab-Grown DiamondsDiamond Simulants
Formation ProcessFormed naturally over billions of years under the Earth’s crustCreated in a lab using high pressure and temperature or chemical vapor deposition
Man-made stones designed to mimic the appearance of diamonds
Chemical CompositionPure carbon (C)Pure carbon (C)Varies (e.g., cubic zirconia is zirconium dioxide; moissanite is silicon carbide)
Hardness (Mohs Scale)1010Varies: Moissanite (9.25), Cubic Zirconia (8-8.5)
BrillianceHigh, with unique sparkle and fireHigh, identical to natural diamondsVaries: Moissanite (high), Cubic Zirconia (lower than diamonds)
ValueHigh, retains long-term valueModerate, lower resale value compared to natural diamondsLow, minimal resale value
CostMost expensiveLess expensive than natural diamondsMost affordable option
DurabilityExtremely durable, resistant to scratchesExtremely durable, identical to natural diamondsLess durable, more prone to scratches depending on the material

What Is the Difference Between Diamond Simulants and Lab-Grown Diamonds? A Common Confusion

When you hear the term diamond simulant, it’s a pretty clear hint that it’s not the real deal. However, many people confuse simulant and lab-grown diamonds. Lab-grown diamonds are real diamonds with the same chemical composition and physical properties as natural diamonds. 

They are created in a lab but undergo a process that replicates the natural diamond formation under the Earth’s surface. In contrast, diamond simulants are man-made diamonds designed to look like real diamonds but do not have the same chemical composition or formation process.

Pros and Cons of Simulated Diamonds: A Buyer’s Guide

Like any purchase, simulated diamonds have their pros and cons. Here’s a breakdown to help you weigh your options.

Pros

Why choose a simulated diamond? This type of diamond offers several advantages that make it appealing:

  • Affordable: Diamond prices can sometimes be too much. Simulated diamonds are a fraction of the cost of natural diamonds or lab-created diamonds. If you’re on a budget but still want the look of a diamond, a simulant can be an attractive option.
  • Ethical Alternative: No involvement with the environmental or ethical concerns related to the natural diamond mining industry. However, if you want a real diamond without worrying about these issues, always look for conflict-free diamonds.
  • Variety: Diamond simulants come in a range of diamond shapes, sizes, and colors, allowing you to find the perfect center stone for a personalized jewelry design.
  • Low Maintenance: Many simulants are durable enough for everyday wear, meaning you don’t have to worry about damaging them with regular use. Materials like Moissanite are especially suitable for daily wear due to their hardness and resilience.

Cons

While simulated diamond jewelry offers an affordable and visually appealing alternative to real diamonds, they come with several drawbacks that may impact their long-term value and durability. Understanding these cons is essential before deciding if a simulated diamond is the right choice for you.

  • Lower Resale Value: Simulated diamonds typically do not hold their value over time like natural diamonds or lab-grown diamonds do. After all, diamond properties such as clarity affect its price.
  • Type of Brilliance: Although some simulants like Moissanite have a stronger brilliance than diamonds, others may have variations in brilliance and, thus, a less authentic sparkle. 
  • Durability: While many simulant diamonds are durable stones, they generally cannot match the unmatched hardness of natural quality diamonds, which rank a perfect 10 on the Mohs scale of hardness. Moissanite, though quite hard, ranks at 9.25, making it more resistant to scratches but still less durable than a diamond. Cubic zirconia is softer, with a hardness of 8-8.5 on the Mohs scale, meaning it’s more prone to scratches and wear over time.
  • Potential for Cloudiness: Over time, some simulants, like Cubic Zirconia, may become cloudy, which can diminish their appearance.

How to Choose the Right Diamond Simulant

Young couple in love choosing diamond ring

Selecting the right simulated diamond involves considering several factors:

  • Material: Decide on the material that best fits your needs. Cubic Zirconia is ideal for those who want an affordable, clear stone, while Moissanite offers a more durable option with a unique brilliance and superior hardness compared to other synthetic stones.
  • Purpose: If you’re looking for daily wear jewelry, opt for a more durable simulant like Moissanite.
  • Budget: Consider how much you’re willing to spend. Simulants offer a range of prices, with Moissanite being generally more expensive than Cubic Zirconia. Still not sure? Take a look at some advice for shoppers on a budget.

The Look You Love, Without the Hefty Price Tag

Now that you know what a simulated diamond is, the next time you’re shopping around for a dazzling piece of jewelry, consider the benefits of a simulated diamond. You might just find that it’s the perfect fit for your needs and wallet. Ultimately, choosing between all the diamond options available comes down to what matters most to you – whether it’s authenticity, budget, or the look you want to achieve.

Each option has its charm and trade-offs, so it’s all about finding the right fit for your style and values. Just remember, the sparkle you love doesn’t have to break the bank, and being informed means you can shine bright with confidence in your choice. At Brilliance, we’re here to help you find your dream stone, whether it’s a certified natural diamond, a lab-grown diamond, or a stunning simulant that catches your eye.

We understand that the right stone is about more than just sparkle but about finding something that speaks to you. If you have any questions or need help making your decision, don’t hesitate to reach out to our diamond experts anytime. 

FAQs 

Anything else on your mind?

Can Simulated Diamonds Pass a Diamond Tester?

No, a simulated diamond generally cannot pass a diamond tester because it does not have the same chemical composition as natural diamonds. Diamond testers are designed to detect the thermal conductivity of diamonds, which simulants like Cubic Zirconia or moissanite do not replicate.

But don’t get them confused with lab-grown diamonds – these are real diamonds that are just created in a lab rather than mined from the earth. Since they are chemically and physically identical to natural diamonds, they will pass a diamond tester.

What Is a Simulated Diamond Worth?

The value of a simulated diamond varies depending on the material, size, and brand. Generally, they are much less expensive than natural diamonds or lab-created diamonds. While they don’t hold their value like true diamonds, they offer a cost-effective option for those seeking affordable brilliance.

How Long Do Simulated Diamonds Last?

The lifespan of a simulated diamond depends on the material. Cubic Zirconia may start to show signs of wear and cloudiness after a few years, especially with frequent use. Moissanite, on the other hand, is more durable and can even last a lifetime with proper care.

What Is the Highest Rated Simulated Diamond?

Moissanite is often considered the highest-rated simulated diamond due to its stronger brilliance and durability. However, Cubic Zirconia remains a popular choice for its affordability and clarity.

Do Simulated Diamonds Get Cloudy?

Some simulated diamonds, particularly Cubic Zirconia, can become cloudy over time, especially with regular wear and exposure to oils or chemicals. Regular cleaning can help maintain their appearance, but cloudiness is a common issue with Zirconia.

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