Once strictly the purview of Valentine’s Day and uninspired husbands, heart-shape jewelry has gone from cloyingly sweet to fashionably tart.

(Above) Eros Passion earrings in 18k yellow gold with black diamonds; $8,400; Elena Votsi at Muse; 866-301-6873; elenavotsi.com

Diamond Heart eternity ring in 14k yellow and white gold; $2,300; Sydney Evan; 213-236-4444; sydneyevan.com

Caviar Heart pendant with diamonds in sterling silver and 18k yellow gold; $995; Lagos; 877-925-4305; lagos.com

Baby Heart Lock clasp in 14k rose gold; $565; Marla Aaron; 646-799-1434; marlaaaron.com 

Heart pendant with diamonds and sapphires in sterling silver and 18k yellow gold; $29,375; Sylva & Cie; 213-488-1444; sylvacie.com