Cutting is an important factor that affects the quality of moissanite drill in its classification. It determines the flash, brightness and fire color of the moissanite. The technical name of oval cutting is' oval improved bright ', which is an improvement on the traditional round bright carving. If you want to buy moissanite with larger carats, oval is a good choice. Due to its extended shape and large surface area, it is larger than a round moissanite with the same carat number. However, an important factor to consider when purchasing oval moissanite is the aspect ratio, which should preferably be between 1.3 and 1.7.