The Perfect Setting Emerald Cut Diamond Engagement Ring with Baguette Halo Setting ($7,200) For those who love an angular design, shop this baguette halo ring with super squared-off edges.

Namely: an emerald brooch from the collection of Queen Ena of Spain. The piece, auctioned off by Christie's Auction House, is an early 20th-century emerald and diamond brooch.

Dakota Johnson attended the 59th Karlovy Vary International Film Festival on July 6. She wore a strapless plunging black gown paired with show-stopping diamond and emerald jewelry by Roberto Coin.

In 1953, John F. Kennedy proposed to Jackie Bouvier with this two-stone ring from Van Cleef & Arpels, comprised of a 2.88-carat diamond alongside a 2.84-carat emerald accented with tapered baguettes.

Dakota Johnson attended the 59th Karlovy Vary International Film Festival on July 6. She wore a strapless plunging black gown paired with show-stopping diamond and emerald jewelry by Roberto Coin.

The 18k gold ring, which features a 21.86-carat Colombian square-emerald-cut emerald, is from the collection of Cecile Zilkha. The Sotheby’s New York Magnificent Jewels sale achieved $46.9 ...