Sioux Falls is an incredible and authentic platinum and 18k ring from the early Edwardian era (circa 1910). This beautiful ring centers a Rectangular Cut-Cornered Step Cut tourmaline gauged at 9.6mm x 8.10mm weighing approximately 3.00ct in weight. The richly colored pink tourmaline is gracefully surrounded by twenty-two Old Mine Cut diamonds, totaling approximately 0.48ct in weight. Sioux Falls is finished with lovely platinum scalloped edges that beautifully hug each accent diamond and a simple 18k yellow gold slightly tapering shank. The ring is currently a size 7.75 and can be sized to fit.