Whether square or round diamonds are better for diamond painting is largely a matter of personal preference. Both types of diamonds can create beautiful, sparkling diamond paintings, but there are some differences between them.

Square diamonds are often preferred by people who want to create more detailed and precise designs. The edges of the square diamonds fit together tightly, creating a more complete and uniform appearance. This can make it easier to create more intricate designs with straight lines and sharp angles. However, some people find that working with square diamonds can be more time-consuming and require more attention to detail.

Round diamonds, on the other hand, are preferred by people who want to create a more textured and organic look. The circular shape of the diamonds creates a more natural and flowing appearance, which can be particularly effective for designs with curves or soft edges. Additionally, some people find that working with round diamonds can be faster and easier than working with square diamonds, as there is no need to worry about aligning the edges perfectly.

Ultimately, the decision of whether to use square or round diamonds for diamond painting comes down to personal preference and the specific design you are working on. Some people prefer to use a mix of both types of diamonds to create a unique and visually interesting effect. It's important to experiment with different techniques and diamond shapes to find what works best for you and the design you are working on.