To an untrained eye and to most jewelers without proper magnifying equipment, it is very difficult to tell apart a diamond from a moissanite even next to each other.
Moissanite will not lose its sparkle as time passes. The clarity and color of the stone won’t change through the years. Dirt and grime are the only common elements that may inhibit a ring’s sparkle until it is cleaned. Damaging the surface of moissanite can inhibit sparkle, as it would for any gemstone.
Moissanite is the only gemstone that passes as a diamond on a handheld point test. If you want a stone that resembles a diamond without a high price, moissanite is a great option. At the end of the day, preference comes down to personal taste.