When buying online, choosing a reputable vendor is the most critical step to avoid "fake" certificates or poor-quality stones.

Unlike cubic zirconia, which can dull over time, moissanite is a lab-grown gemstone made from silicon carbide that is built to last. It ranks , making it harder than rubies or sapphires and second only to diamonds in durability.

: You can typically purchase a high-quality moissanite for about 10–15% of the price of a diamond of comparable size. What to Expect: 2026 Pricing Guide