Why would we give of the Heart Jewelry? What is the meaning behind all heart necklace jewelry? To begin the heart is in the center of our being, is one of the organs that allow us to live.Heart Jewelry can also personify spirituality, morality, emotions, and even intellect. The soul can also be characterized by the heart, seeing that the soul is supposed to be in the center of your being. Valentine’s Day jewelry is heart-shaped when given the most because this is the day of love.