For instance, they are perfect for anniversaries, the birth of your child, etc., so that you can cherish that moment for an eternity. However, you must be very vigilant while choosing these eternity bands, as there are many fake diamond eternity rings in the market. Differentiating the fake diamond eternity rings from the real ones will be really challenging, especially with your naked eyes, but it is not without a solution.   For starters, note that there are two types of eternity diamond rings: full eternity rings and half eternity rings. In the former one, diamonds are paved on the entire band in order to offer beautiful sparkle from every angle. You can either wear this ring alone or team it up with your wedding ring. However, it is really hard to resize a full eternity diamond ring and hence you must be very alert while choosing the ring size. In case of half eternity rings, the gemstones are paved only up to the halfway and usually consist of maximum seven or nine diamonds. You can try various diamond shapes and size in half eternity rings. Besides, you can also resize these diamond rings.