The DaYan Gem Cube series consists of an assortment of bizarre, many-sided puzzles that resemble multifaceted gem stones. The different gem cubes can be manipulated in a variety of different ways that makes each of them a unique puzzle to solve. Note on Stickerless vs. Stickerless (Bright): Stickerless (Bright) is the same as stickerless, except it features a brighter color scheme with more purple and pink colors. In the picture, Stickerless (Bright) is shown on the right hand side.