From colored stones to unexpected cuts, these celebrity engagement rings prove that modern brides are choosing individuality over tradition.For a long time, engagement rings followed a script. A clear diamond, a classic cut, a familiar setting. Beautiful, yes. Predictable, also yes.Now, that script is being rewritten.A growing number of celebrity engagements are pointing toward something more personal, more expressive, and a lot less expected. Think unconventional cuts, colored gemstones, symbol