These stones are untested. I cannot tell you for sure what stones they are. They are stamped 14k and have 6 prongs around the stone. The stones are approximately 7mm. They look to be about 1 ct size. This ring was picked up at an estate with other genuine precious metals and jewelry. I just dont have time to have every item tested. It is being sold as “CUBIC ZIRCONIA” and there is a possibility that is exactly what it is.