If you aren't dead set on jewelry, try to get her something which reflects her interests. For example, my wife is teetotal bugnuts mad for anything to do with Charlie Chaplin. The best received gift I ever got her was a script from his film 'Monsieur Verdoux', with margin notes in Chaplin's hand writing.
But it needn't be pricey - just something that is about her.
Boru
But it needn't be pricey - just something that is about her.
Boru
‘I can’t be having with this.’ - Esmeralda Weatherwax