the only kind that exists, costum made estate earrings 14k yellow gold, unmarked but tested and were costum made. the omega lever has a tiny stainless steel middle part for maximum durability. they also have the beautiful vintage cage style setting. natural vs or better white diamonds (1.5mm) the black opal is a triplet. one opal has a line across but thats how it was made and there is no crack, it's also almost impossible to spot. earrings are 17mm by 13mm. to note: the earring omegas seem loose but that's the design and are 100% sturdy and ready to wear make an offer, I also trade