Diamonds are still her best friend
Let’s be honest here, you can’t beat diamonds! Why? Because diamonds are forever and because she can show them to her girlfriends and boast about how much you love her, not to mention that they look good. Also, the classic engagement rings feature diamonds, so a diamond has this retro value to it if you want to use that to your advantage. However, the trends seem to be pointing away from clear diamonds and champagne or yellow diamonds seem to be the best choice.