Walmart offers the Personalized Mom Birthstone & Name Heart Necklace, model no. 12WM60, for $50 with free shipping. That's $9 off list and the lowest total price we could find. You can choose two to six personalized names and birthstones. (A white crystal will be placed when no personalization is chosen.)
Also available is the Personalized 14K Gold-Plated Mom Birthstone & Name Heart Necklace, model no. 12WM61, for $59 with free shipping. That's $10 off list and the best deal we could find. It can be customized in the same manner as the above item, but features a gold-plated pendant.