Man, if you want a girl that wants you to buy her jewelry, maybe you're looking for the wrong girl...
I mean, the more $$ you spend on jewelry, the less you have on GEAR.
Also, IMHO, buying expensive gifts for someone you're not actually in a relationship (long term) with can come across as pretty pompous and can seem like you're trying to buy her affections.
And I'm sorry Birdi but when I read your post all I wanted to reply with is "you know why helen keller couldn't drive? because she's a woman." If you're on here something tells me you'd be more impressed with a good U87 clone than 8karats of IHS diamonds around your neck.
Seriously, some guys seem to want that ultra-girlie girl and it's really going to be aweful for you. What you need to do is hang out, meet some people, find someone you really click with, don't attempt to purchase their affections and then be done with it.
Now I'm not a great example because I for the most part, find girlie girls annoying as hell. I mean, if I can't take her shopping at Toys from the Attic or now South Austin Guitars, what the hell fun will she be most of the time? The girlie girls get in the way of doing the music. "Oh you should take me shopping..." Oh you should shut the hell up and let me finish scoring this film. "We never cuddle..." you never help me put up microphones...
And I'm happily married to the woman of my dreams. Girlie enough to not be creepy (IE does not posess a phallis) but can hang out like "one of the guys," is a worse Gear Slut than I am (
) and has the same twisted, dark sense of humor as I do. Met her at music school. Go figure, all the girls there were like parking spaces (taken or handicapped).
So in conclusion, calm down. No woman worth your time is going to NEED you to purchase expensive jewelry items and by doing so, you're probably hurting your chances. Be cool like Miles, man.