Lab Grown Diamond vs Moissanite: Which Is Better for You?

Lab grown diamond vs moissanite is one of the most common questions we hear from couples shopping for an engagement ring. Both stones look bright and white, both are made in a lab, and both cost far less than a mined diamond. But they are different gemstones, and the right choice depends on what matters most to you.

Quick answer: choose a lab grown diamond if you want a real diamond with a classic white sparkle. Choose moissanite if you want the biggest, most fiery stone for the lowest price and do not mind a rainbow-like sparkle.

What Is the Difference?

A lab grown diamond is a real diamond made of pure carbon. Moissanite is a different mineral, silicon carbide, first found by Henri Moissan in a meteor crater in 1893 and now created in labs for jewelry. A lab grown diamond is chemically the same as a mined diamond; moissanite is not a diamond at all.

Sparkle and Appearance

Moissanite bends light more strongly than diamond and splits it into more color, so it shows bold rainbow flashes, especially in sunlight and in larger stones. A lab grown diamond gives a crisper white sparkle with balanced flashes of color. Many people love the extra fire of moissanite, while others prefer the traditional diamond look. If possible, compare both in daylight before deciding.

Shown: Round Moissanite Solitaire Stud Earrings

Durability for Everyday Wear

Both stones are excellent for daily wear. Diamond is the hardest natural material at 10 on the Mohs scale, and moissanite is close behind at 9.25, harder than sapphire and ruby. Either stone will handle years of everyday life in a well-made setting.

Price and Value

For the same size, moissanite usually costs much less than a lab grown diamond, which lets you choose a larger center stone on the same budget. Keep in mind that neither stone is an investment. Lab grown diamonds and moissanite are bought for their beauty and value at purchase, not for resale.

Which Should You Choose?

• Choose a lab grown diamond if having a real diamond matters to you, you want a classic look, or you want an IGI or GIA grading report.
• Choose moissanite if you want maximum size and sparkle for your budget, or you love colorful fire.

Explore our lab grown diamond engagement rings and moissanite engagement rings, or see the side-by-side chart on our Moissanite vs Lab Grown Diamond vs Diamond page.

Frequently Asked Questions

Can people tell moissanite from diamond?

Most people cannot at a glance. Up close, and especially in bright light, moissanite shows stronger rainbow flashes, which a trained eye may notice.

Is moissanite a fake diamond?

No. Moissanite is its own gemstone, not an imitation. It should simply be sold as moissanite, not as diamond.

Does moissanite get cloudy?

Good quality moissanite does not turn cloudy. Like any stone, it can look dull when dirty, and a simple cleaning restores its sparkle.

Author Bio

Aumsri Pradhan

Founder, Ivevar Luxury

Aumsri Pradhan leads Ivevar Luxury, a Surat-based brand that handcrafts lab grown diamond and moissanite jewelry in its own workshop, and shares practical buying guidance on the Ivevar blog. View author profile ›