These earring jackets were crafted sometime during the Mid Century design period ( 1940-1960s ). The 14k yellow gold earring jackets are in a classic twisted cable design. The center pearl studs measure approximately 4.5 MM but these jackets work well with an array of stud earring sizes. The pearls are cream colored with a slight blush. The pearls have a good luster and good complexion as well as 14k yellow gold posts. These earrings feature a comfort gel friction back closure. Purchase includes jackets as well as pearl stud earrings.