The yellow gold creates a warm palette for anyone who is more about warm tones than the icy hues of platinum. Sig Ward Jewelry emerald-cut band in 18K yellow gold, $4,200, sigwardjewelry.com. SHOP ...

The May birthstone has been coveted for centuries; Cleopatra prized the gems so much she claimed all of the emerald mines in Egypt during her reign, and they haven't lost any of their royal ...

Christie's * A 10.13-carat square emerald-cut diamond with I color, VVS2 clarity, and excellent polish and symmetry, set on an 18K white gold ring adorned with baguette and round diamonds.

An Emerald Pendant Plucked From a Designer’s Own Collection To create a one-of-a-kind necklace, David Yurman accented a 31-carat, cushion-cut Colombian stone with a cascade of glittering diamonds.