Now, about this change:

As you know, some items have a rating, this often tells the player how advanced the item is and in some cases, how rare it is.
Now ...... the star shape was left unchanged, but i want to change it to something else and instead of yellow i would like to use a bright cyan (when refering to items with 10,11 and 12 stars)
Now, what shape should i use? hexagonal? circular? should i left unchanged? should i use a totally different shape?