since I have a moral commitment to not buy conflict"blood" diamonds I have kept the carat count on the ring to less than 1/2 carat(ok maybe I'm a bit cheap)

. She's small so no big ring on her hand. Also a simple one baht chain with heart pendant looks good and tastefull maybe two baht is ok. Anything more is getting near the Mr. T starter kit size.
Buy the chain in China town area in Bangkok. The ring near were they sell the guns near Chinatown.
I didn't spend the two months salary propoganda that they try to tell you in the states.