Purple Watermelon Nail Design If you love watermelon then this nail art is perfect for you. Here we have a watermelon nail design, these nails are long with coffin shape. For this look, two of nails are painted in purple, the rest of nails are nude with purple watermelon and black heart shape design. It is a trendy and gorgeous look that will jazz up your nails. A nail design like this is stunning and easy to wear, it will suit the summer.