Moissanite Myths & Misconceptions Debunked: The Truth Behind the Sparkle

The biggest moissanite myths — that it's a "fake diamond," loses its sparkle, or is the same as cubic zirconia — are simply untrue. Moissanite is a genuine silicon-carbide gemstone with more fire than diamond, a hardness of 9.25, and lasting brilliance. Let's separate fact from fiction.

Myth #1: Moissanite Is Just a "Fake Diamond"

Fact: Moissanite Is a Unique Gemstone

• Distinct composition: Moissanite is silicon carbide, unlike diamond (pure carbon).
• Higher fire: It often shows more colourful flashes than diamond, standing out on its own merits.
• Genuine beauty: It's a popular diamond alternative, but it's a gemstone in its own right — not an imitation.

Learn more in our complete guide to moissanite.

Myth #2: Moissanite Loses Its Sparkle Over Time

Fact: Proper Care Ensures Lasting Brilliance

• High durability: With a Mohs hardness of 9.25, moissanite resists scratches and keeps its surface lustre.
• Easy maintenance: Regular cleaning with mild soap and water keeps it gleaming.
• Long-term radiance: Unlike some simulants, moissanite doesn't cloud or dull as it ages.

See our moissanite care guide for cleaning tips.

Myth #3: Moissanite Isn't Hard Enough for Daily Wear

Fact: Moissanite Is Extremely Tough

• Mohs ranking: At 9.25, moissanite is just behind diamond's 10 — one of the hardest gemstones available.
• Everyday wear: It handles the rigours of daily life, including rings and bracelets worn regularly.
• Built to last: Its hardness makes it well suited to everyday and keepsake pieces.

Myth #4: Moissanite Is the Same as Cubic Zirconia

Fact: They're Different Stones

• Silicon carbide vs zirconium dioxide: Moissanite and CZ are chemically distinct, and moissanite has a higher refractive index.
• Brilliance & fire: Moissanite's sparkle is more intense and longer-lasting than CZ's.
• Durability: Moissanite (9.25) is harder than CZ (8–8.5) and resists clouding.

Compare them in our moissanite vs cubic zirconia guide.

Myth #5: Moissanite Looks "Too Rainbow" or "Fake"

Fact: Sparkle Is Subjective

• Rainbow fire: Moissanite's high dispersion produces colourful flashes under direct light, which many people adore.
• Lighting matters: In natural or soft indoor light, moissanite looks very similar to a near-colourless diamond.
• Personal preference: Love extra sparkle? Moissanite is ideal. Prefer a subtler shine? A lower-dispersion stone may suit you better.

Myth #6: Moissanite Is "Not a Real" Birthstone Choice

Fact: It's a Beloved Diamond Alternative

• April alternative: Moissanite is a popular, affordable stand-in for April's diamond.
• Meaningful gifting: Its brilliance, durability, and ethics make it a thoughtful choice for any celebration.

FAQs

Is moissanite a real gemstone or a fake?

It's a real, genuine gemstone (silicon carbide) — distinct from diamond, and not an imitation.

Will moissanite cloud or dull?

No. Unlike some simulants, moissanite keeps its clarity and brilliance over time with basic care.

Is moissanite the same as cubic zirconia?

No. They're different materials; moissanite is harder, more brilliant, and longer-lasting.

Ready to see for yourself? Explore our moissanite collection.

---

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.