These stud posts are perfect for everyday wear. For a bold pop of color and a simple, classic look, these are the best go-to. Details Studs Versatile Circle Content + Care 18K Gold Plated  Swarovski  To avoid tarnishing and prolong the life of your jewelry, we recommend that items are not exposed to chlorine, perfumes, excessive sweat, or water as these can be abrasive and cause the removal of the plating.