Mother's Birthstone Charm Necklace is made with Swarovski Crystals, and Sterling Silver. The base necklace is $40 and each charm is $4. The Base Necklace includes an 18" Sterling silver Rolo Chain, Silver Charm Ring and (1) Birthstone Charm. Please indicate in the box below 1) Number of Charms and 2) Month of each Charm. The price of the additional charms will be added upon processing. Please allow 3-4 weeks for delivery of this item since each one is made to order by hand. Thank You!