3x3mm Natural Chrome Diopside Hoop Earrings, Natural Chrome Diopside Earrings. These earrings are 925 sterling silver and platinum plated, or rose gold plated. These earrings contain 5 natural round cut Chrome Diopside gemstones in a prong setting. This item includes a gift box and a certificate of authenticity with purchase. This item is made to order, please allow up to 10-15 days for processing and delivery of this item.