Velda - Yes I see in the picture of the quilt that it looks like a couple of the blocks have the square the same color as the 4-patch. For the majority though they have used different colors to give it the jewel affect which is why I lOVE THIS PATTERN.
If you are short on colors and then I will give you the option to sew the black sections to the colors and pin them together. This way they have the flexibility to be added to a different colorwave by the WINNERS (which YES I am hoping to be a winner of this one) I don't want you to have to buy more fabric BUT any reason to pick up one more color is a GREAT REASON
*** TO ALL
Make sure when you sew the pieces of the block together that the color in the 4-patch is touching the color of the square as in my sample block.
HAPPY STITCHIN'!