Textured signet ring with a small Oparex stone. You will be hypnotised by its iridescent colors. Do you prefer a full silver moment, the Crater Ring is a perfect option for you. Measurements Please check our Ring Size Chart to choose the perfect fit. Materials Recycled Sterling Silver and Oparex Details Made to order. Please allow up to two weeks to have your piece produced. Handmade in Switzerland. Slight variations may occur due to its artisanal process. Jewelry Care Silver tarnishes more rapidly due to exposure to air, dust or other elements, as well as leaving it unused. To keep it clean and shinny, a Care Kit is given with each piece. To learn more on how to maintain your piece properly, please read our Care section.