Resin is a durable and transparent plastic that is especially suited for jewelry-making because of its ease of use. It begins in a liquid form, but after being casted, becomes quite durable. Special resin molds with smooth surfaces are created to give it a glossy finish.
Milky CZ is another form of cubic zirconia, altered to make its form look milky. It comes in various colors, and can be cut into any shape.