Heat a large skillet, over medium-low, and add the butter to melt.
Add the shallots and cook, stirring occasionally, for 3 to 5 minutes, until tender but not browned.
Add the garlic and cook for 30 seconds to 1 minute, until fragrant.
Add the wine and cook until about half the liquid has evaporated.
Add the tomatoes, 1/2 teaspoon kosher salt and 1/4 teaspoon pepper and cook over medium-heat, stirring occasionally, for 10 to 12 minutes, until the tomatoes have released their juices and almost completely collapsed.
Transfer the tomato mixture to a small dish, then carefully wipe out the pan with a damp paper towel.
Pat the scallops dry.
Add the grapeseed oil to the skillet and turn the heat to medium-high.
When the oil is very hot, add half the scallops, spacing them evenly in the pan, and season with kosher salt.
Cook with out moving for 2 to 3 minutes, until golden brown on the bottom.
Flip and cook for 1 more minute; don’t overcook.
Transfer the scallops to a plate and repeat with the remaining scallops, adding more oil, if necessary.
Drain any remaining oil and take the skillet off the heat.
Return the tomatoes and their juices to the skillet and squeeze in 1 tablespoon lemon juice.
Return the scallops to the skillet, nestling them into the tomatoes.
Top with the zest of both lemon halves, julienned basil and mint, and a generous sprinkle of coarse sea salt; serve immediately.