Find Your Sparkle

Choosing the stone for a meaningful ring isn't only about price — it's about sparkle, durability, and the meaning you want it to carry. This guide breaks down the four most popular stones — CZ, Moissanite, Lab-Grown Diamond, and Natural Diamond — so you can choose the one that's right for you.

Quick Comparison

	CZ	Moissanite	Lab-Grown Diamond	Natural Diamond
Composition	Cubic zirconia (synthetic)	Silicon carbide (mostly synthetic)	Carbon — real diamond, grown in a lab	Carbon — real diamond, mined
Hardness (Mohs)	8–8.5	9.25	10	10
Sparkle / Fire	High fire, but looks different from diamond	More fire than diamond — bold rainbow flashes	True diamond brilliance	True diamond brilliance
Sparkle Over Time	May dull or cloud with long use	Stays brilliant for life	For life	For life
Price	฿ (entry)	฿฿ (mid)	฿฿฿ (high)	฿฿฿฿ (highest)
Best For	Everyday wear / fashion / entry budget	Maximum sparkle at great value	A real, certified diamond at an accessible price	Heirlooms / lasting value / special occasions

Watch the Sparkle Comparison

Wondering how Cubic Zirconia (CZ) compares to Moissanite?
Photos don't always capture the difference. Watch the comparison videos below to see how each stone performs under real lighting.

CZ vs Moissanite
See the sparkle difference side by side.

Moissanite Close-up
A closer look at its brilliance and fire.

💍 Most Madduck ring designs are available with your choice of Cubic Zirconia (CZ), Moissanite, or Lab-Grown Diamond (LGD), allowing you to choose the stone that best fits your style and budget.

CZ (Cubic Zirconia)

A popular synthetic stone that's easy on the budget with plenty of fire — ideal for everyday wear and following trends. Good to know: CZ is softer than diamond (Mohs 8–8.5), so its sparkle can dull over time depending on care.

Moissanite

A silicon carbide stone, second only to diamond in hardness (Mohs 9.25), that stays brilliant for life. Its signature is "fire" — rainbow flashes even stronger than a diamond's — making it eye-catching at an accessible price. A favorite for those who want luxury that's great value.

Lab-Grown Diamond

A 100% real diamond grown in a lab, identical to a natural diamond in composition, hardness, and brilliance (Mohs 10). It tests as diamond and can be certified just like a mined one — the only difference is its origin. It costs far less than a natural diamond and is more environmentally friendly.

Natural Diamond

A diamond formed beneath the earth over millions of years — rare, with lasting collectible value. Perfect for special occasions and for passing down as an heirloom.

So, Which One Is Right for You?

Entry budget / everyday wear / fashion-first → CZ
Maximum sparkle, durable, at great value → Moissanite
A real, certified diamond at an accessible price → Lab-Grown Diamond
Collectible value / heirloom / special occasions → Natural Diamond

Choosing Your Stone at Madduck

Most Madduck rings can be made in both CZ, Moissanite and Lab-Grown Diamond on the design you love. Message our admin to ask which models are available, or browse the collection.

💍 Shop All Rings 💬 Ask Our Admin

Frequently Asked Questions

What is Cubic Zirconia (CZ)?

CZ, or cubic zirconia, is a synthetic stone made from zirconium dioxide. It has high, diamond-like fire at an accessible price, making it a popular choice for everyday silver jewelry.

Is moissanite a real diamond?

No. Moissanite is a lab-created silicon carbide stone, but it's second only to diamond in hardness (Mohs 9.25), stays brilliant for life, and actually has even more fire than a diamond.

Is a lab-grown diamond a real diamond?

Yes — 100%. It's identical to a natural diamond in composition and properties, and can be tested and certified the same way. The only difference is that it's grown in a lab, which makes it far more affordable.

Does CZ dull over time?

CZ is softer than diamond (Mohs 8–8.5), so with daily wear its sparkle can dull or scratch over time. Gentle care helps it stay beautiful longer.

What's the difference between moissanite and CZ?

Moissanite is harder, stays brilliant for life, and has more fire, but costs more. CZ is a great-value entry option that's easy to swap with the trends.