Moissanite vs Lab Diamonds: What’s the Difference?
As more couples choose ethical alternatives to traditional diamonds, the two most popular options today are Moissanite and lab-grown diamonds. While both are stunning and sustainable, they have some key differences. Here's what to know before you decide. Need help choosing a stone for a custom ring? See Why Moissanite Is the Perfect Stone for Custom Rings.
✨ Brilliance & Sparkle
Moissanite has a higher refractive index (2.65–2.69) than lab diamonds (2.42), meaning it bends light more effectively and sparkles with more "fire" — those flashes of rainbow light. Lab-grown diamonds have a more traditional brilliance with white flashes and a subtler sparkle. Curious how Moissanite compares to mined diamonds too? Read Moissanite vs Diamond.
💸 Price & Value
Moissanite is typically 80–90% less expensive than a lab-grown diamond of the same size. That means you can opt for a larger carat stone or more intricate setting without stretching your budget. Lab diamonds still carry the prestige of "diamond," but at a significantly higher cost. Want to know why so many are switching? Check out 5 Reasons Moissanite Is the Best Choice for Your Forever Ring.
🌱 Ethics & Sustainability
Both Moissanite and lab diamonds are lab-created, making them far more ethical than mined gems. Moissanite is always conflict-free, and Jewel Eternal only uses D color, VVS1 grade stones that are certified and sustainably grown. Learn more about ethical standards in What Is Ethical Jewelry?.
🔬 Durability & Longevity
Lab diamonds rate a perfect 10 on the Mohs hardness scale, while Moissanite ranks just below at 9.25 — still more than durable enough for daily wear. Both stones resist scratching and maintain their brilliance over time. For Moissanite care tips, visit How to Care for Your Moissanite Ring.
💬 Which One Should You Choose?
- Choose Moissanite if: You want maximum sparkle, value, and a distinctive fire that sets your ring apart.
- Choose a Lab Diamond if: You prefer the classic diamond look and feel but want an ethical origin.
💍 Explore Ethical Sparkle with Jewel Eternal
Whether you choose a brilliant Moissanite or a custom lab diamond design, Jewel Eternal offers handcrafted rings that are stunning, sustainable, and designed to last. Want a side-by-side comparison of other gemstones too? Read Moissanite vs White Sapphire.