Customize with children's birthstone. This ring is available in sterling silver with 3-5 birthstones. When you're ordering please select the ring size and include a note for birthstone details. I will respond your email to confirm. Stones will be set from left to right. This ring is sterling silver .925 but I can also make it in solid gold, please let me know if you're interested. The following simulated birthstones will be set: January - Simulated Garnet $0 February- Simulated Amethyst $0 March - Simulated Aquamarine $0 April - White CZ $0 May- Simulated Emerald $0 June - Simulated Alexandrite $0 July - Simulated Ruby $0 August - Simulated Peridot $0 September - Simulated Sapphire $0 October - Simulated Pink Tourmaline $0 November - Simulated Citrine $0 December - Simulated Blue Topaz $0 I also carry genuine stones for an additional cost, let me know if you're interested. Stone size: 4 x 2 mm Top Ring width: 4.5 mm Bottom ring width: 2 mm Production time: 5-7 business days Your personalized items will be shipped in nicely packaged and protected jewelry box.