Cucumber Tomato Salad

1 1/2 pounds tomatoes, diced

1 large English cucumber, peeled, halved, and thinly sliced

5 large basil leaves, thinly sliced

3 tablespoons light flavored olive oil

1 1/2 tablespoons balsamic vinegar

1 teaspoon sugar

1/2 teaspoon kosher salt

1/4 teaspoon freshly ground black pepper