My Ring Finger is “supposedly” a perfect size 7. Both my ERing and my WBand are size 7s.
The ERing fits a tad snug… sort of how you described how your ring currently fits you. It will not make its way over my knuckle on its own, I have to give it a wee tug to get it started. It leaves a mark (although not a real indentation) where it sits, and it doesn’t flop / spin around.
My Sparkly WBand fits looser, although it is also a size 7 (different Jeweller tho… it came from Peoples / Zales… bought in Canada). If I take off my ERing infront of it, the WBand will move up and down my finger easily. It won’t come over my knuckle… BUT if my hands were in water, or cold, I am pretty sure it would do pretty easily. It does spin around all the time, and drives me a bit crazy in that regard, but I won’t get the two soldered together, because I like being able to wear them seperately or stack them with my 3rd Ring…
My 3rd Ring, is my Plain WBand. It is also a size 7 that matches my Sparkly WBand (it came from Zales / Peoples… bought in the USA). The majority of the time, I wear it either on my RHRing Finger, or not at all. On my RH it fits a tad snug… and therefore doesn’t spin around. It does leave a bit of a mark, and needs to be given a wee tug to get it over my knuckle.
On my LHRing Finger when worn alone, or with my Sparkly WBand… it fits pretty much identical to it’s Sparkly Twin… moving and spinning.
Therefore to me it is pretty clear that my LH Ring Finger is indeed a wee bit smaller than my RH Ring Finger in circumference (normal, they say we when we have 2 of anything on our bodies, one is always larger / smaller than the other)
In reality, I don’t wear either of my WBands alone very often on my LH Ring Finger… so the chance of loss is pretty minimal. And if I was doing something where loss would be higher (ie Water Sports like Snorkelling / Scuba) then on those occasions I’d be leaving my Sparkly Rings off and going with just my Plain WBand… so to lose it, although it would be a HUGE Sentimental loss (as it is the WBand that binds BOTH Mr TTR & I together, in so much as it was his too during the Ceremony), financially it wouldn’t be a HUGE hit for us, as it isn’t very expensive.
Hope this helps,