.40 Diamond Cluster Stud Earrings in 18k Yellow Gold.  These dimensional diamond studs feature a cluster of .40 carats of baguette and Round Brilliant cut diamonds finished in 18 karat yellow gold. Two (2) .015 carat diamonds and sixty-eight (68) diamonds, ranging from .90 2.0 carats in weight, are set in a dynamic starburst mounting. The collection of diamonds are near colorless and collectively brilliant.