Just as in fashion, jewelry trends (unique shapes! colored stones! new metals!) come and go. For an engagement ring you'll love as much 10 years from now as you do today, opt for a traditional diamond cut and fuss-free design that will never go out of style.

Style HT2314, platinum engagement ring with round-cut center stone and side stones, $5,640 (without center stone), TACORI

See more round-cut engagement rings. Photo: Courtesy of TACORI