This “tin-glazed earthenware” tile was made in the Netherlands, probably between 1620 – 1640. It seems to depict a dog, a spaniel(?), running or jumping inside a yellow painted diamond shape, or lozenge.
Although the creator of this tile will undoubtedly remain unknown, Dutch tiles were very common in middle class and upper class kitchens, to show wealth.
Typical designs for the tiles would be native and exotic animals (including birds, dodgy looking elephants, dogs, or foxes), Dutch scenery (such as windmills) and everyday scenes (milking cows, a swineherd, etc).