“Maasai” necklace in white, $268 by Amanda Pearl; amandapearl.com, 646.666.0653.

Necklace of Czech glass crystals and acrylic stones on a brass chain plated with 12K gold, $125 by J.Crew; jcrew.com, 800.562.0258.

Rosato “Circle” drop necklace in 18K gold with white agate, $1,395; forzieri.com , 800.476.1718.

Antique silver necklace with zircons and crystals, $400 by Tejani; tejani.com.

Victorian "Diana" drop necklace with clear Austrian crystals set in plated metal, $250 by Amrita Singh; amritasingh.com.

Pearl slide necklace in 18K white, pink, and green crushed gold from the Crushed Melange collection by Pamela Froman Fine Jewelry, $7,300; pamelafroman.com, 323.954.7436.

"Raine" necklace of hand-knotted freshwater pearls, vintage crystals, and blue lace agate on sterling chains with a vintage button clasp by Marlaina Stone, $850; marlainastone.com, 248.544.9925.