Rose Quartz is like an healing blessing for the heart on all levels. It's a stone of Love and it's pretty pale pink color is soothing too.

charmsoflight.com says, "Rose Quartz is the stone of universal love. It restores trust and harmony in relationships, encouraging unconditional love. Rose Quartz purifies and opens the heart at all levels to promote love, self-love, friendship, deep inner healing and feelings of peace. Calming and reassuring, it helps to comfort in times of grief. Rose Quartz dispels negativity and protects against environmental pollution, replacing it with loving vibes. It encourages self forgiveness and acceptance invoking self trust and self worth.

Rose Quartz strengthens and balances the physical heart and circulatory system, and releases impurities from body fluids. It hastens recovery, reduces high blood pressure, aids chest and lung problems, heals the kidneys and adrenals, and alleviates vertigo. A good energetic support for those with leukaemia. Rose Quartz has the power to increase fertility and to protect both mother and unborn fetus from miscarriage."

I've personally used Rose Quartz many times, and I do believe in it's innate ability to be calming and relaxing as it helps us to focus on love of all kinds.