You can be faced with many considerations, and none of these can be rushed because you do not want to end up with something that does not match the engagement ring. Choice of Diamond The diamond you choose will almost always have a bearing on the engagement ring’s cutting style. When there is more than cut is chosen to be mounted, you will need to ensure that at least one carries across to the ring. Choice of Ring Width You should try to get an eternity ring of width matching that of the engagement ring. For example, if the latter sits 3 mm over the finger, then an eternity ring sitting at the same level would create a stunning look. Shape and Profiles Does the diamond engagement ring you are wearing feature a flat outer face or a court profile? While the court profile is normally preferred, there are variations used. You should also watch the depth and make sure it matches that of the engagement ring. If it is too high, the rings will look like they are stepped against each other.