Our sterling silver crab pendant is realistic right down to claws, eyes, pointed shell, and individual legs. There are no "blue" colors found on the crab. The Blue Crab is a type of crab found in southern waters, also referred to as the Chesapeake blue crab or Atlantic blue crab. The image accurately shows the product as an all silver item. The crab measures 1.125 inches wide and .75 inch tall (not counting jump ring). Comes with an 18 inch stainless steel link chain. The finishing is done by hand to bring out exceptional contrast and detail.