We bought a bridal set as my rings. How do you wear it. The diamond as engagement ring? The additional band is worn on the outside or inside of the ring? Do you solder them together before or after the wedding?

 The diamond is worn as the engagement ring prior to the wedding. Before the ceremony, this ring can be taken off or worn on the right hand, so you have a free left finger for the wedding ring exchange during the ceremony. Or, if you leave the diamond on for the ceremony, reverse them later. After the wedding, the wedding band is worn closest to your heart and the diamond engagement ring on the outside, closest to your fingertip (on the left hand). They may be soldered together after the wedding, but some brides prefer to keep them separate, in case one or the other needs work in the future. Some rings that come as sets clasp together with a small hook and hole (or other method), so they do not need to be permanently connected.

Some brides prefer to only wear one wedding band and not have a separate engagement ring. This is purely your choice. You can certainly be engaged without a ring. Or, if the single ring contains diamonds, you can wear it as an engagement ring and then take it off and use it again during the ring giving in the ceremony.