Spartina Little Shell Stud Earrings Set Sea Foam Tarnish ResistantJump into summer with our Little Shell Stud Earrings Set. Made of tarnish free, water resistant 14kt shiny gold plating over stainless steel, this coastal inspired earring set features petite, textured shell motifs with coordinating round sea foam crystal studs. Designed to shine through everyday wear, exercise, showers, and summer at the beach. Made for everyday wear. Tarnish free & water resistant. Attributes: Posts Dimensions: Shell 0. 25'' W; 0.