My 1/6 yuan worth. The ring sizes are all over the place depending on which system is being used. I would strongly agree with Meiandmark - let your SO choose the ring !!! I gave Ying a small token of my affection that I bought in USA. She picked the engagement ring. There is no chance I could have picked something she really liked. This is hopefully the last/only time your SO will do this, it should be special time. Ying really enjoyed looking, deciding what she would like. She would sometimes ask if I like something - real meaning is it too expensive. We bought in China, yes the prices can be less, some times very much less, sometimes higher - depending on where you shop. There were many, many choices, but Ying knew where to go ( she had a long time to pre-shop) Are you sure of what you are getting - of course not - it is China !! My laopo had a great experience and she is really happy - that is all that matters. ( We did this in Beijing - maybe not as easy or variety of choice in smaller cities)