Wholesale Prices in Price Matrix. The hematite rings are domed. The hematite stone is polished to a high shine and the rainbow affect cover the ring completely. The bands are 6mm Wide. The smaller sizes make great toe rings. For small order amounts (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 non-magnetic stone.