The most popular shapes or cuts for diamond wedding rings are as follows:1. Asscher cut diamonds2. Emerald cut diamonds3. Heart-cut diamonds4. Marquise Diamonds5. Oval Diamonds6. Radiant cut diamonds7. Round diamonds8. Pear-cut diamonds9. Princess cut diamonds10. Solitaire diamondsYour beloved most certainly has a preference when it comes to diamond cuts. Take the time to find out what cut is her favorite before you start shopping for diamond engagement rings. The cut of the shape will help you decide on the setting and the band.