A heart locket is a small pendant, usually in the shape of a heart, that opens up to hold a picture or something precious inside. It symbolizes love and holds sentimental value. Full definition
Personalized Heart Locket Necklace with Hand Stamped Initial, Mothers Day Gift for Her, Anniversary Gift, Wedding Gift (etsy.com)
Find her an affordable charm bracelet or an inexpensive heart locket you can personalize with the word «Mom» so she can treasure the pictures of her family inside. (thespruce.com)
A thin necklace made from genuine.925 sterling silver will glisten against any skin tone, especially if matched with a sparkly heart locket or a cz diamond cross that makes you happy when you wear it. (blingjewelry.com)