Stardust Drop Diamond Earrings From the Stardust Collection. Solid 18-karat white gold. G and H color diamonds with SI1 clarity; 0.82 total carat weight. Pierced backs. 3/4" diameter. Imported. About Kwiat With 100 years of experience, Kwiat has perfected the art of diamond jewelry. Their brilliant pieces reflect their high standards of beauty and quality. Each step, from the hand-selection to the cut of the diamonds, is performed using time-honored processes. The results are impeccably crafted, timeless