A unique alternative

If traditional isn't your style, or your girlfriend's, consider an antique ring or a ring that features a gemstone, such as a ruby or emerald. Just remember that not all gemstones have the durability suitable for an engagement ring. If the idea of an antique ring piques your interest, research stores in your area before you shop. There is a niche market of jewelers who sell antique rings and replica designs. Just make sure you've found a quality jeweler.