Oh Boy...
I did pick up on one thing no one else has yet. He like his girls to wear white gold. Say it out-loud and it sounds a little...like a guy who likes to tell his woman what to wear. A little young for that, isn't it? I'll say no more on that issue.
BUT...
You want to spend your 200$? I'll tell you how to spend you 200$. First, of all the guys I dated-- from younger than you are now to well into my 20s, there's not one thing- not one 'bling' gift that I either have nor remember although I was given a fair number. I do, however, have a peanut shell in my jewelry box, given to me by an over-educated, a-little-too-loose-around-the-hinges, nut-case of a boyfriend- about 25 years ago now. I can't quote the moment, but it had to do with complexity disguised as simplicity.
Here's what I think you should do if you're just dying to show off the power of your cash. Find a local or semi-local event- theater, music, a one-day class in something cool (I took one once in cartoon making). How about food? I remember every single restaurant I was taken to on a date-- and cherish the memories of tasting my very first (fill in your own favorite delicacy). I also really truly loved being in a situation where both my date and I were obliged to look NICE-- dress UP. And there are some REALLY cool aquariums, museums, science museums, planetariums, hiking and biking trails, waterfalls with swimming holes, etc etc. Parks, for the most part are free, but the rest of these things all cost money-- often quite a LOT of money. I remember 200 bucks being really easy to spend (When I had it)- because I wasn't a grown up w/ all these pesky responcibilities and PAYMENTS on EVERYTHING

. So, go ahead, but remember- jewelry can be thrown away, re-gifted, or pawned. But you can't pawn a shared memory. Hell (yes, real women say 'hell'- often in fact!), some memories you just can't shake even when you really want to!! Jewelry... ya know, jewerly should be something you never expect. Never. Like a surprize inheritace, a sweet gift from a loved one, or a md'ing find. If it becomes commonplace or expected, it seems to lose a lot of 'value'. Just my humble (maybe not all that humble

) opinion.