Estimated time 2-4 weeks for custom orders. Choose the months, order, and quantity of birthstone colors you want and we will custom make it for you. Perfect gift for moms of all ages, or have one made with your favorite colors. Sterling Silver filled wire hand wrapped with 12K Gold filled wire around genuine Swarovski Crystals. Please select your size and how many birthstones. After checkout email us at firstname.lastname@example.org with what birthstones in what order you would like.