Heart pendant necklaces for mom never looked as good as our Heart in Heart Birthstone. The Perfect Necklace for Moms. This beautiful heart necklace with birthstones can be engraved with up to seven names andŒæshowcases up to seven unique birthstones. Commemorate the children in your family with this gorgeous mom necklace. It is even a great gift for grandmothers to have to keep their grandchildren close!