Floating DiamonLuxe 3/4 Carat T.W. Simulated Diamond Heart ($175) Featuring eye-catching simulated diamonds and a heart design, this sterling silver necklace offers stunning style. Floating DiamonLuxe pendants have a unique setting that keeps the center stones in constant motion, providing endless brilliance. PENDANT DETAILS Pendant length: .92 in. SIMULATED DIAMOND DETAILS Total weight: 3/4 ct. Cut: round Setting: prong