To ask you where's nice for reasonably priced rings?

[Pumpkintopf]

DS (17) wants to buy his gf a ring for Christmas (not engagement!).

She's lovely, has quite a cool style, nose piercing, dyed silver hair- he's asked for help finding something, thinking perhaps she might appreciate something a bit different- not a massive budget though.

Any ideas lovely people?

Thank you for all the additional fab suggestions, and for the links - much appreciated!