Wholesale Prices in Price Matrix. The hematite rings are domed. The magnetic hematite stone is polished to a high shine. Ring sizes 3 1/2 to 13 ... pulled at random. The bands are 6mm Wide. The smaller sizes make great toe rings. For small order amount (5 or less rings) if you want a specific size, let us know in the comment section of the check out process and we would be happy to accommodate you. Large orders must take an assortment of sizes. The hematite is a man-made magnetic stone.