It means heart, tranquility and elegance.
Swarovski's beating heart symbolizes the heartbeat, and the shape of the necklace depicts sincere and warm feelings to the extreme, giving people a sweet feeling like love. It also implies tranquility, and the beating heart necklace will give people a quiet and far-reaching state of mind, which is fascinating.
It also implies elegance. Wearing a necklace on the body can make people look dignified and elegant and full of temperament.