If you’re shopping for a diamond alternative, you’re probably weighing your options between moissanite diamonds vs cubic zirconia. Both sparkle beautifully and can fool the untrained eye. But there are some important differences to consider before you click “add to cart.” Whether you’re looking for an engagement ring on a budget or just love the look of diamonds without the price tag, knowing how these two compare can help you make a smarter, longer-lasting choice.
Let’s break it all down in this easy-to-follow guide.
What Are Moissanite and Cubic Zirconia?
First things first – what exactly are these stones?
Moissanite is a gemstone made of silicon carbide. It was originally discovered in a meteor crater (yep, space!), but today it’s grown in labs. Moissanite is known for its brilliance – some even say it sparkles more than diamonds. It’s also extremely durable.
Cubic zirconia (CZ) is a synthetic stone made from zirconium dioxide. It’s been a go-to diamond alternative for decades and is widely available and very affordable. While it can be dazzling when new, it tends to lose its sparkle over time.
Moissanite Diamonds vs Cubic Zirconia: Key Differences
Let’s dive into the core differences between moissanite diamonds vs cubic zirconia, starting with the qualities that matter most to shoppers.
1. Brilliance and Sparkle
- Moissanite: Known for its incredible fire (rainbow-like flashes) and high brilliance. It actually has a higher refractive index than diamonds.
- Cubic Zirconia: Also sparkly, but in a glassier, more artificial way. It looks great at first, but over time the shine can fade.
Winner: Moissanite. It’s just more convincing and maintains its sparkle.
2. Durability and Longevity
This is where things really start to matter, especially for jewelry you wear every day.
- Moissanite: Scores 9.25 on the Mohs scale of hardness. That means it’s almost as hard as a diamond (which scores 10) and super scratch-resistant.
- Cubic Zirconia: Scores around 8-8.5. Still hard, but more prone to scratches, chips, and clouding over time.
Winner: Moissanite. It will last much longer without showing wear, thanks to moissanite’s durability for everyday wear, making it a smart choice for anyone who wants lasting sparkle.
3. Price Point
- Moissanite: More expensive than cubic zirconia, but much cheaper than diamonds and lab-created diamonds. Prices vary depending on cut, size, and brand.
- Cubic Zirconia: Extremely affordable. You can get a 2-carat CZ ring for under $50.
Winner: Cubic Zirconia. If you’re on a super tight budget, CZ is the lowest-cost option.
4. Realism
- Moissanite: Often mistaken for real diamonds. Its clarity and sparkle are very convincing.
- Cubic Zirconia: While sparkly, it’s easier to tell it’s not a real diamond, especially in larger sizes.
Winner: Moissanite. It closely resembles a diamond to the average person, and even experts may need tools to tell moissanite apart from a diamond.
5. Maintenance and Care
- Moissanite: Easy to clean and stays brilliant with minimal effort.
- Cubic Zirconia: Tends to attract oils and dirt more easily. Needs frequent cleaning and still may look cloudy after a while.
Winner: Moissanite. It’s very easy to keep clean and sparkling.
Pros and Cons at a Glance
Feature | Moissanite | Cubic Zirconia |
Brilliance | Excellent | Good (fades over time) |
Durability | Very high (9.25 Mohs) | Moderate (8–8.5 Mohs) |
Price | $$ | $ |
Realism | Highly diamond-like | Less convincing |
Longevity | Long-lasting | Shorter lifespan |
Maintenance | Easy | Needs frequent cleaning |
Which One Lasts Longer?
When it comes to longevity, moissanite wins hands down. Thanks to its hardness and resistance to scratching, it can easily last a lifetime with regular care. Cubic zirconia, on the other hand, tends to get scratched and cloudy within a few months or years of regular wear.
So if you’re looking for a long-term investment piece, like an engagement ring, moissanite is the clear choice. If you’re okay with replacing the jewelry every now and then or just want something for a special occasion, cubic zirconia might still work for you.
Who Should Choose Moissanite?
Go for moissanite if you:
- Want something that looks like a diamond and lasts like one
- Are shopping for an engagement ring or daily-wear piece
- Don’t mind spending a little more for better quality
Who Should Choose Cubic Zirconia?
Cubic zirconia might be right for you if:
- You’re on a tight budget
- You want costume jewelry or a travel ring
- You’re okay replacing the piece after a year or two
Final Thoughts: Moissanite Diamonds vs Cubic Zirconia
If you’re serious about your sparkle and want a piece that lasts, moissanite diamonds vs cubic zirconia is not a close match – moissanite is the clear winner. It offers the best balance of beauty, realism, and durability for the price.
But hey, if you’re just looking for something cute, quick, and affordable for a special night out – cubic zirconia still has a place in your jewelry box.
No matter which you choose, you’re skipping the high price tag of traditional diamonds, and that’s always something to feel good about.
