Shop › Classic Round 0.5 carat of Moissanite Stud Earrings Image 1 of 2 Image 2 of 2 Classic Round 0.5 carat of Moissanite Stud Earrings $66.99 Sits on six-prongs of fine 0.5 carat of Moissanite and stands out by itself as a classic in its class. Quantity: Add To Cart Added! Sits on six-prongs of fine 0.5 carat of Moissanite and stands out by itself as a classic in its class.