Okay, so, some tinkering.
Approaching the REBIRTH from a fresh perspective, I had a few goals in mind, regarding the shape and size.
Due to the nature of how Shapr3D works, I’ve had to use filleting to give the bottom of the shank the proper curved cross-section, rather than the flatter look I initially get when revolving my sketch shape into the basic ring. This tends to result in the shoulders of the ring (circled in red, directly below the disc) looking very rounded and a bit wonky. Depending on how various elements are mixed together (finger-hole position, degree of filleting, etc,) this area can appear to either bow out or sink in. Looking at real-world rings, this area tends to either slope out and down, or angle near 90 degrees. This current version slopes out and down, but with a more rounded look, which isn’t too bad.
Meanwhile, I found myself wondering if the disc wasn’t too big, after all. The previous iterations had a diameter of 20mm, which is slightly smaller than the BLACKEST NIGHT promo rings. I just changed that to 19mm, and it does make a difference in terms of the sleekness and proportions of the design.
I threw together a quick mock up (right) to compare with the previous version from months ago (left). This new version is based upon the old, but with the aforementioned tweaks. The disc is 19mm, the shank is 7mm wide/2.5mm thick, and the distance from the top of the ring-hole to the bottom of the disc is 3.5mm, which makes this version sit a little higher.