In case you didn’t hear: Color is in. And that applies for engagement rings, too—the latest jewelry trend that’s on the up and up. Ever since Prince William proposed with Princess Diana‘s famous 18-carat sapphire engagement ring that turned Kate Middleton into a Duchess, there’s been a growing demand for vibrant-colored stones (engagement ring e-retailer recently launched a new category dedicated solely to gemstone rings). From Olivia Wilde‘s emerald haloed rock to Jessica Simpson‘s 5-carat ruby, it’s clear that unconventional sparklers are having a moment. Click through to see 12 celebrities’ beaus who have shopped outside the box and scooped up engagement rings in unique settings, rare cuts and more.


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