14kt gold cushion solitaire emerald prong necklace on 16 - 18 inch chain *photo shown in 4 carat EMERALD Emerald, a powerful stone in preserving love and healing the heart, carries soothing energy and provides freshness and vitality to the spirit. Emerald promotes friendship, balance between partners, and is particularly known for bringing loyalty. It was dedicated in the ancient world to the goddess Venus for its ability to ensure security in love.