Eight millimeters is the threshold where a round CZ stud crosses from subtle to seen: large enough to register clearly at a conversational distance, refined enough to wear in any context without feeling overdressed. Rachel Zoe bezel-sets the 8mm CZ in rhodium over sterling silver, the continuous metal collar keeping the profile clean and the stone secure for daily wear. Butterfly back closure. This is the stud earring for the wearer who has decided she prefers one strong pair over a collection of smaller ones - the 8mm round CZ in a bezel setting is generous enough to anchor a look without requiring anything else.