After my first attempt at creating the Ravenclaw Diadem, I couldn't decide if it was too plain or if I would prefer a more colourful, textured looking Diadem. So I redesigned the Ravenclaw Diadem slightly to include shadows and highlights to the piece with the addition of two more colours, the black for shadow and the light blue for highlight. I also redesigned the matching earrings in the same way.
The pattern for this Ravenclaw Diadem, including the earring, is below. Although I actually made the earrings and the diadem's gems on a round peg board, I have included it with the pattern below. This pattern is also a wallpaper, and I also have a simplified wallpaper below. To better view these just click on a picture to enlarge it. To download as a wallpaper, click on the picture you want and "Save Image As" to save to your computer or alternatively you can select "Set As Desktop Background"
