Are you trying to choose between simulated diamond vs cubic zirconia for that special gift? Let me share a story. My friend Sarah once received a stunning diamond ring from her fiancé. It turned out to be a simulated diamond! She was thrilled with the ring's brilliance and sparkle but surprised to learn it wasn't a real diamond.
Simulated diamonds are made of materials that simulate the appearance of a natural diamond, while cubic zirconia is a synthetic gemstone. The main difference is the cost, with simulated diamonds being more expensive than cubic zirconia brands. But both can be a great choice for a gift or special occasion. So which will you choose? Let's know the differences in detail to find out!
Key Takeaways
- Diamond simulants are lab created diamonds alternative to naturally occurring diamonds. It looks just like a real diamond
- Cubic zirconia stones (sometimes known as CZ) are man-made synthetic stones that look almost identical to diamonds. It’s created from an oxide of zirconium and is then cut into a diamond-like shape.
- Cubic zirconia and simulated diamonds are both made to look like diamonds.
- The main difference is the cost, with simulated diamonds being more expensive than cubic zirconia. But both can be a great choice for a gift or special occasion
What is Simulated Diamond?
Diamond simulants are lab created diamonds alternative to naturally occurring diamonds. It looks just like a real diamond, but is crafted to mimic the look, feel and sparkle of a real diamond, without the hefty price tag.
Lab grown diamonds are created to have the same physical properties such as sparkle and shine of a real diamond, but these diamond alternatives are much more affordable. They are created from a variety of materials such as glass, synthetic moissanite, zirconia, crystal structure and other materials. While they may not have the same carat weight and durability as a real diamond, they still make a great choice for jewelry pieces like an engagement ring or for everyday wear.
Simulated diamonds offer a lot of flexibility when it comes to choosing the perfect diamond for you. They come in a variety of shapes, sizes, and colors. You can choose from classic round cut diamonds, princess cut diamonds, emerald cut diamonds, rose cut diamonds, and more. The best part about this fake diamond is that it is environmentally friendly. Since they are not mined from the Earth, they don't harm the environment like a real diamond would.
What is Cubic Zirconia?
Cubic zirconia stones (sometimes known as CZ) are man-made synthetic stones that look almost identical to diamonds. It’s created from an oxide of zirconium and is then cut into a diamond-like shape. While it may look like a diamond, it is much more affordable and has a rating of 8 on the Mohs hardness scale. This makes it a great alternative to diamonds for jewelry.
CZ cultivated diamonds come in many different colors and cuts, making it a great choice for a range of jewelry styles and engagement rings. Whether you’re looking for something subtle or something that really shines, cubic zirconia can offer you the perfect piece. It’s also very durable and requires very little maintenance compared to other gemstones, making it a great long-term investment.
Another great thing about CZ is that it is ethically sourced. Unlike diamonds, which are mined from the earth, cubic zirconia is man-made and therefore doesn’t require any mining or destruction of the environment.
Cost Comparison
Simulated diamonds are man-made stones, created to look like diamonds. The process of making them is expensive and time-consuming, so they are more on the expensive side than cubic zirconia. On the other hand, cubic zirconia is found in various parts of the world and is incredibly affordable, making it a popular choice for many jewelry lovers.
When it comes to the cost of diamonds vs cubic zirconia, the choice between diamond stimulants and cubic zirconia is clear. Cubic zirconia is significantly less expensive than simulated diamonds, making it the more attractive choice for those on a budget. However, the quality of these lab diamonds can differ significantly depending on the vendor, so it is important to do your research and make sure you are buying a good carat weight at the best price.
Overall, when it comes to cost comparison between simulated diamonds and cubic zirconia, the choice is clear. Cubic zirconia is significantly more affordable than simulated diamonds, making it the better choice for those looking to save money.

Durability
Simulated diamonds are much more durable than cubic zirconia. They are harder and more scratch resistant, and they can withstand higher temperatures. However, simulated diamonds are also more expensive than cubic zirconia.
So, when choosing a diamond simulant, it is important to consider your budget and the type of jewelry you are looking for. If you are looking for an affordable mined diamond simulant, cubic zirconia may be a good option. But, if you are looking for something more durable and long-lasting, simulated diamond is the clear winner.
Appearance
Simulated diamonds and cubic zirconia are both visually similar to real diamonds, but there are a few key differences in appearance. Simulated diamonds have a more vibrant sparkle and shine than cubic zirconia, and are often more colorless.
On the other hand, cubic zirconia can have a slightly yellowish hue and is more susceptible to chipping and fracturing. Additionally, cubic zirconia is more malleable and easier to work with than simulated diamonds, making it a more affordable option for jewelry makers.

Frequently Asked Questions
Read on to clear your doubts while I answer some frequently asked questions.
Is simulated diamond good quality?
Simulated diamonds are a great option for those looking for a good quality diamond without the high cost associated with a natural diamond. They offer excellent brilliance and sparkle, and can be a great option for those who want to make a statement with their jewelry. While simulated diamonds may not have the same quality as a natural diamond, they are still a great option for many people.
Do simulated diamonds test as real diamonds?
Simulated diamonds can test as real diamonds in some cases, depending on the type of diamond and the testing methods used. However, it is important to note that not all simulated diamonds are created equal and not all testing methods are created equal; therefore, it is important to do research and consult with a qualified gemologist or expert in order to ensure the authenticity of a diamond.
Do simulated diamonds tarnish?
Simulated diamonds do not tarnish, which makes them a great choice for those looking for a beautiful, long-lasting piece of jewelry. Simulated diamonds are also much more affordable than their natural counterparts, making them the perfect choice for anyone on a budget. With so many advantages, it is no wonder why simulated diamonds are becoming increasingly popular.
What are Lab Grown Diamonds?
Lab grown diamonds are an ethical and affordable alternative to mined diamonds. They are man-made in a lab, so no natural resources are used in the process. They are chemically, optically, and physically identical to mined diamonds, and offer many of the same benefits. They also come in a variety of shapes, sizes, and colors, making them the perfect choice for anyone looking for a unique and beautiful diamond.
Conclusion
Simulated diamonds and cubic zirconia are both great options if you're looking for a diamond-like accessory or substitute. Ultimately it comes down to cost and durability. Simulated diamonds are more expensive but have a higher quality and longer lasting shine. On the other hand, CZ stone is much more affordable but not as durable. In the end, it varies from person to person.