Hardness
Diamonds and moissanite are two of the hardest minerals on the Mohs hardness scale, with diamonds being at the top of the list with a perfect score of 10 while moissanite closely follows with a score of 9.25. This makes diamonds a bit harder than moissanite, but they are both very durable for everyday wear.
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Refractive index
Moissanite has a higher refractive index than diamonds, making the fire or brilliance appear more rainbow-colored than the white sparkle that a diamond reflects.
