Customized ring for mothers

Do you know someone or a store that is good in customizing mothers rings?I am asking this question coz I suggested to a relative that it would be a nice present to her mother.It's been a while that she's searching for a nice gift to her mother's 50th birthday.She wanted it to be very special for her mother's special day.She definitely agreed that a customized ring would be a great gift.

Right now,she is looking for a store that would customized a ring.Also,she and her siblings are busy preparing for the upcoming special celebration.They wanted it to be their mother's most memorable birthday.