The linking finger rings have been a staple of my stand-up act. I was advised long ago to avoid "ladies finger rings," for liability reasons. I stick to men's rings, stating that they are heartier and easier for everyone to see.
I've had a few ladies diamond rings passed up to me (to trip me up?), but I continued with them, while very nervous.
I'll have to admit - Joe Porper's ring, which I use now, incorporates a "twist" that makes the whole effect run more seamlessly. The McComb/Biro pencil prop really makes for a nice finish.
Just my experience...