A crystal is a solid material commonly used in glassware, jewelry as well as a component in various electronic devices such as digital watches. Crystals generally have transparent or translucent properties and can have a wide variety or colorations.
About Platform:
Platform describes footwear with raised, thick soles of at least one and a half inches in height. Platform soles are often made of cork, plastic, rubber or wood and are generally worn for fashion or to add height.