There are a number of ring styles that fall into the overlapping categories of right hand rings and anniversary rings. Those include both fashion styles that are worn for effect such as right hand rings, as well as styles more closely associated with bridal. Right hand rings greatly expand the stylistic choices available to commemorate a special anniversary, but are not intended to be part of the wedding set. Anniversary rings that may be part of a set or may stand alone include eternity rings with small diamonds that go all the way around, as well as three stone and five stone rings with larger diamonds that run across the top of the finger.
Anniversaries can be beautifully commemorated in multiple styles. Much depends on the style of the existing engagement ring. Anniversary rings are generally intended to be compatible and to be worn together with the engagement ring. Many women want them to be flush fit, but others do not mind a slight separation between engagement ring and anniversary ring. Others might like the asymmetry of a contrast in styles.
Anniversary rings can take the place of the traditional wedding band, or be an add-on that is worn on the opposite side of the engagement ring. Engagement rings are often framed by an anniversary band on either side. A traditional anniversary ring can also be worn as a standalone piece on the right hand. There are as many choices and variations as there are tastes and preferences.