Cook the rice according to the package directions.
Meanwhile, in a medium bowl, combine the pineapples, cucumbers, ginger, lime juice, 1 tablespoon of the oil, cilantro, 1/2 teaspoon salt, and 1/8 teaspoon pepper; set aside.
Rinse the scallops and pat them dry with paper towels. Season with salt & pepper. Heat the remaining oil in a large skillet over medium-high heat. Add the scallops and cook until golden brown and the same color throughout, about 2 minutes per side. Divide among individual plates and serve atop the rice with the salsa.