Free Shipping
Secure Checkout
Always Certified
24 Hour Customer Service

Lab Created Diamonds vs Moissanite vs Cubic Zirconia

If you are comparing lab grown diamonds to imitation diamonds or simulated diamonds, the differences are a lot more significant than the differences between mined diamonds and lab-grown diamonds.

That is because simulants aren’t diamond at all: they are other materials that look somewhat similar.

Cubic zirconia, commonly known as CZ, is the most popular imitation because it imitates the sparkle of diamond at a low cost. It is easily detectable because it has different optical and physical characteristics. It is quickly detectable with a diamond tester that checks for diamond’s characteristic thermal conductivity. There are many branded versions of CZ including Diamonique, Diamond Nexus and Miadonna’s Diamond Hybrid. 

Moissanite, which is transparent lab grown silicon carbide, is another material that is similar to diamond. Moissanite is doubly refractive, giving it a different facet pattern than diamond. It has a higher dispersion than diamond, which gives it more rainbow flashes. It also often has a slight greenish tint of body color.

Other materials that are used to imitate diamond are white sapphire, both natural and lab-grown; natural white topaz, lab-grown white spinel, and glass.

Photo Credit: Swedes Jewelers