The Rose Quartz sphere is a great stone to use in a grid or in a centerpiece. Energy flows from all around the sphere which gives it a wonderful aura. Rose Quartz is the stone of Love, It is a type of quartz so it does have that nice high vibration but it is also very calming and soothing to work with.
The Maganese that is also in the stone is why it resonates with our Heart so well. It helps us release resentment, anger, jealousy and all other negative emotions.