Used for beautification in jewellery, crystals are also used for emotional healing. In feng shui, a crystal, which is diamond-cut is used to enhance the wealth and bring in good fortune, especially in the financial sphere. A diamond-shaped crystal helps enhance love and luck. Crystals are used in feng shui because of their ability to scatter, spread, guide and activate energy wherever they are hung. When they reflect and refract light from the sun, they bring in extra chi (rainbows) inside the room. Presence of crystal smoothens the flow of positive energy and ensures purification . Couples become more affectionate, children study harder and income continues to increase.