The best description of the pattern in the quilt depends on the actual visual elements present in the design. However, if the goal is to choose one option based purely on its ability to convey a strong visual impact and a clear description of the pattern, the following response could be most compelling:
A pattern of small diamond shapes in rows of colors create a star.
This option indicates a specific shape (diamond) and a clear arrangement (rows), as well as a recognizable overall form (star), making it a strong candidate for a compelling design choice.