Jewel Quilt Block
At first glance, it doesn't look like a precious gem, but the Jewel Quilt Block has a surprise up its sleeve. Technically, this block is just one half of a jewel. Put a few of them together, and rotate every other one. The result is some interesting diagonal lines that remind me of pieces of candy. I think "bubblegum" might be a more descriptive name. Or maybe "Jolly Ranchers."