Rainbow moonstone is a type of feldspar mineral that exhibits a beautiful play of iridescent colors, making it a highly sought-after gemstone. The best quality rainbow moonstones are characterized by their high polish and smooth surface on both sides, which enhances their natural beauty and luster. The high polish gives the gemstone a reflective and shiny appearance, while the double-sided polishing ensures that the stone has a consistent and uniform appearance from all angles.
