Rose quartz is perhaps best known for being the stone of unconditional love. It’s believed by some to emit a strong vibration of: 
love
joy
emotional healing
“Rose quartz is a powerful healing crystal,” says crystal healer and reiki master Keith Birch, owner of KSC Crystals. “Its soft, gentle, almost pastel pale pink coloring is a good indication of its most commonly known property: that of pure love. It’s a stone of both giving and receiving love.”