The Clear Cards are new cards that started to appear after the Sakura Cards had turned blank and clear. It was revealed, in Chapter 23, that new cards were created by Sakura herself without realizing it, due to the growth of her magical powers.
Unlike either the Clow Cards or Sakura Cards, they do not begin with "The" before the name of the card. In addition, the Clear Cards have two kanji in their Chinese/Japanese name, as opposed to one in the Clow Cards and Sakura Cards (with the exception of The Hope, which also has two kanji).
As the name states, the cards have a clear background on both sides, but display different images on the front and back. They have a frame with a moon on the left and the sun on the right, with a seven pointed star with smaller five pointed stars on each tip, at the top and a magic circle at the back.
The front consists of the same golden frame around the central picture that the Clow Cards, with a moon and a sun in the center portions like the Sakura Cards. Above, a seven pointed star with smaller five pointed stars on each tip with the Chinese/Japanese symbol of the card, and below, a ribbon with the card's de facto name, below a cross star on top of a four-pointed star.
List of Clear Cards