They don't call it a classic for nothing! Sure, we love a trend-driven (raw diamonds, colored stones, artsy settings) sparkler, but nothing says, "I'm engaged!" quite like a classic engagement ring. Defined by simplicity and sophistication, these rings are called classics for a reason; a traditional diamond cut with a no-frills design never goes out of style. Trends come and go, but a classic diamond ring is, as they say, forever.