US Patent 9756909 Jewelry ring

A jewelry product for wearing on the finger includes an annular member with a receiving passage that is meant to be engaged with the finger. The annular member includes a circular top portion that is integral with a base portion, said base portion being provided with the passage for engagement with the finger, and the circular top portion having a central aperture extending in the direction of the passage, and a circular mounting member for engagement over and with the circular top portion of the annular member. Inter-engageable threads are disposed between the circular mounting member and the circular top portion so as to enable the circular mounting member to be secured with or removed from the circular top portion of the annular member.