Moissanite vs Cubic Zirconia: Which One Is Right for You?

Moissanite costs more than cubic zirconia (CZ) but is far harder, sparkles more intensely, and keeps its brilliance for years. CZ is cheaper but softer and prone to clouding over time. If you want lasting sparkle, moissanite wins; if you need a low-cost, short-term piece, CZ does the job. Here's the full comparison.

Quick Overview: Moissanite

• Origin: Lab-created from a mineral first found in a meteorite — prized for ethical sourcing.
• Brilliance: A higher refractive index than diamond delivers vibrant, rainbow-like fire.
• Hardness: About 9.25 on the Mohs scale — ideal for daily wear.

Quick Overview: Cubic Zirconia

• Composition: A synthetic stone made from zirconium dioxide, common in costume and fashion jewellery.
• Initial sparkle: Bright when new, but it can dull over time.
• Hardness: 8–8.5 on the Mohs scale — more prone to scratches than moissanite.

Key Comparisons

Sparkle and Appearance

Moissanite is known for intense fire and lasting brilliance. CZ offers decent sparkle but can lose its shine faster.

Cost

Moissanite costs more than CZ but remains far cheaper than diamond. CZ is extremely budget-friendly — good for short-term or trend-led pieces.

Longevity and Maintenance

Moissanite resists scratches and keeps its brilliance with minimal care. CZ needs frequent cleaning to prevent cloudiness and tends to need replacing sooner.

FAQs

Is moissanite better than cubic zirconia?

For durability and lasting sparkle, yes. CZ is cheaper but softer and dulls faster.

Does cubic zirconia cloud over time?

It can. CZ is more porous and prone to cloudiness, whereas moissanite keeps its clarity.

Is moissanite worth the extra cost over CZ?

If you want a piece to last and keep sparkling, moissanite's hardness and brilliance make the difference worthwhile.

Explore our moissanite collection for pieces built to last.

About Irosk Australia

Irosk is an Australian jewellery brand specialising in handcrafted 925 sterling silver birthstone and gemstone jewellery. Founded by Ish and Lovneet in 2021 and based in Brisbane, Irosk creates timeless, meaningful pieces designed for gifting and everyday wear — each one crafted with care and accurately described so you always know exactly what you're getting. Your stone. Your story.