Unstamped Ladies Diamond Stud Earrings. Each earring with one round old mine cut diamond set in six split prongs. Total diamond weight is approximately 4.25ct. (in other words, each one is slightly larger than 2ct). Diamonds with slight variations in size: one diamond measures approximately 8.32mm -8.3mm x  depth 5.2mm, second diamond  8.36mm – 8.19mm x  depth 5.0mm. Earrings have threaded posts & backs and weigh 3.1 grams. First diamond is graded: Color – K-L / Clarity - SI / Cut – Old Mine. Second diamond is graded: Color – J / Clarity - SI / Cut – Old Mine.