Diamonds may be a girl's best friend, but not all girls want a traditional diamond engagement ring. Pretty solitaires set in gold or platinum are lovely and will always be in style. If, however, you prefer your engagement ring to reflect your personal taste [something of the utmost importance to me when Mr. Sizemore and I were selecting my engagement ring], then look no further than these stunners for your inspiration. I am dying over the Monique Pean champagne trillion cut solitaire set in rose gold; What an inspired take on tradition. For all of you Earth Mamas out there, check out the raw diamonds from Todd Reed. Very cool and very sustainable. Lastly, the gorgeous pink tourmaline from Cathy Waterman is super romantic. Who could ever say "no" to that?