Well, lessee: you could probably get studs in the vicinity of .60 tcw, a smallish eternity band, a pretty solitaire bezel pendant, small diamond hoops ... and that's just the tip of the iceberg! Being a frugal sort, I'd probably start hunting through Signed Pieces to see what they had: why pay more with a limited budget, ya know?
ETA: And, obviously, my one-track mind goes straight to jewelry!