If she's interested in a Pandora bracelet, they come in different sizes. I thought my FIL was nutty when he asked me to go to a jeweler's where they sell Pandora to get measured for a bracelet, but that's what they do. My wrists are not that big and I wear one of the medium sizes. Measure at the broadest point on your wrist and add an inch (charms take up room). They sell 17cm ones (6.7") and I hear you can get a 16cm (6.2") one.

The ring sounds good too. I wore my HS and college rings for a long time.