Three ellipses for a ring

I imagined this ring from the combination of three identical ellipses.

The first ellipse is centered around the central stone, a pink spinel. The other two ellipses intersect to form the body of the ring, the finger sliding across one of these two ellipses. The inclination of their crossing allows the ring to be adjusted to the desired size.

Rose gold ring 18K 750
Pink spinel 2.59 carats