When you say that you're budget is low, how low, I was over there last november, and headed to the third floor in Tiffanys, myself and my friends called it the irish floor, all we could here were irish accents, its where they sell silver, I picked up a lovely necklace for my sister's 21st for 250 dollars.
Have a look on http://www.tiffany.com for an idea! I got this beautiful silver Tiffany heart chain for $150 when I was there. It's worth it just to get that lovely blue bag )
Hizzy -thanks for that. Yes I would be thinking of silver and 250 dollars would be my top budget. Did it come in the little blue box. Was there much of a selection around that price
thanks everyone for all that info. Definately will pay a visit now - seems like I will have a choice and may not have to spend as much as I originally thought.