1/4cttw Cushion Shaped Diamond Cluster Necklace. This classy cluster diamond necklace contains .25cttw of pave set round diamonds set in a cushion shaped cluster with invisible bale. Comes with a 14k white gold 18 inch chain. This necklace is 14K white gold and diamonds are I/J color and eye-clean SI3 clarity. Designed by Gabriel & Co., also available in yellow gold and rose gold.