.37 Abstract Diamond Cluster Earrings in 18k White Gold. 37 Abstract Diamond Cluster Earrings in 18k White Gold. These abstract cluster earrings feature . 37 carats of sparkling diamonds finished in 18 karat white gold. Two (2) . 025 carat baguettes and sixty eight (68) Round Brilliant cut diamonds, raging in weight from . 90 1. 50 carats, jut out from the stud like a unique starburst. The diamonds are all near colorless and eye clean, creating a collective sparkle against the shimmering 18 karat white