There are several things to keep in mind when purchasing a military ring. There are also some things you will want to ask your jeweler before you buy.
Ask if the ring is plated or solid before purchasing. You don't want to buy a cheaper plated metal at a price that is normally that of a solid gold ring.
Does the ring have a hollowed back or is it solid. This is important because hollowed rings can cause your finger to become irritated.
Is the ring comfortable as well as nice looking? Even if you buy the most beautiful of military rings, if it isn't comfortable what is the point? You want a ring that is both comfortable and nice to look at.