We love birthstone rings! We offer a huge selection of birthstone rings. Some of them are stackable, like our own 3mm sterling silver eternity birthstone bands, as well as Stackable Expressions sterling silver rings. We especially love the different color bands, and the textured rings. There are so many possibilities. You can switch them up with your children's birthstones, or create your own birthstone ring with colored accent bands. If you're not looking to stack them, we recommend Liz Nicole brand stainless steel Birthstone Bands. These beauties are 5 mm wide, with channel set birthstone crystals. These rings are a top pick among our customers. The best part about the Liz Nicole brand rings is that you can even personalize the inside of your birthstone bands. So if you're building a mother's ring, you can select the 3mm silver bands to stack them, and have your child's name & birthdate engraved on the inside. Personalization is always free. If you need assistance with creating a birthstone ring, please let us know, we'd be happy to assist you.