So getting engaged in China is a little different than in the West. For one, the lady picks the ring. Secondly, you go to a dinner, that you are paying for, with all her family members and ask her parents for permission to marry their daughter. Then the ring traditionally goes on the middle finger rather than what we call the ring finger in America.
Note: It is most auspicious to buy the ring in the morning, the morning of the engagement, and you will have to consult someone for an auspicious day, possibly a professional matchmaker or a fortune teller.
And that is the easy part! (HA!) then comes all the paperwork. I am currently in the process of doing this paperwork and will report on it in hopes to make a guide for others going through this process in the future.