Heat olive oil in a large skillet over medium-high heat.
Pat the scallops dry with paper towels and season both sides with salt, black pepper, paprika, and cayenne pepper.
Once the oil is hot, add the scallops to the skillet in a single layer, making sure not to overcrowd the pan.
Sear for about 2-3 minutes on each side until they are golden brown and cooked through. Remove the scallops from the skillet and set aside.
In the same skillet, reduce the heat to medium and add the heavy cream, Cajun seasoning, and lemon juice. Stir well and let the sauce simmer for about 3-5 minutes until it thickens slightly.
Return the scallops to the skillet and gently coat them in the sauce. Cook for an additional minute to heat through.
Garnish with chopped parsley before serving.