If you are ready to pop the question, you need a few things to make sure that everything goes smoothly. You will need to create the perfect atmosphere, a suitable location, and of course, an engagement ring. When picking out a diamond engagement ring, you may be so focused on the four Cs of diamonds and finding the ring that suits your chosen one perfectly that you may end up forgetting the most practical aspect of picking out a ring – the size. Even though the band can be resized and changed, wouldn’t it be ideal if you got it perfectly the first time? Here’s How To Figure Out Her Ring Size Without Asking.