Of course you’re entitled to have disgruntled feelings about it!!
I also understand the reasoning between your descriptions of the jewellery inc value because 9 times out of 10 if you hadn’t, people would have lambasted you for not giving context (because lets be honest there’s a massive difference between being gifted a few generic bits of jewellery and flipping Cartier imo !!)
The value does also tie in with the sentimentality because as you said, something like Mums fancy Sapphire ring is tied into the memory of her and special occasions as opposed to every day stuff. I have a fancy engagement ring myself and a special ring I also wear day to day, both sentimental but VERY different price points, if I gave one to one of my daughters and the other to the other, one would definitely be being shortchanged!!! 🙈
Feeling overlooked within families is definitely evocative and brings very weird sentiments, and are totally normal, the people on here not only dismissing the ideas but being vile (that one you called out definitely needs an attitude adjustment 🤬) are able to say that when they have no skin in the game. Like you said, even your other sister seems to have felt some kind of way so, even within your family dynamic so I doubt you are massively overreacting.
I suppose the only saving grace is that it clearly wasn’t done maliciously and in secret and against you solely, so I would take some comfort of it being more of an instinctive thing to placate an upset sister as opposed to a direct snub!
Would I come out directly and whinge etc - noooo!
might I at some point ask my other sister if it made her feel sad mum just giving all the ‘special’ jewellery away quite so casually - possibly, depends if you think your family dynamics would cope?
I recently learned my grandmother left my uncle a “fuck tonne” (direct quote 🙄🙄) amount of money years ago when she passed, which pretty much paid for my cousin’s wedding and house deposit, while I (quite literally the poor little orphan 🎻🎻🎻 🤣) got nothing. She was perfectly entitled to leave her money to her only son, but as we were very close, and i was her daughter’s only child, I still have weird bitter feelings about it.
I won’t be doing anything about it as a) i can’t but b) i’d be causing drama for nothing.
BUT If i would’ve known about it before she passed, maybe i might’ve asked for an understanding to the decision (before people come for me, i don’t mean thrown a money grabbing tantrum!!) i mean legitimately trying to understand why I was disregarded from what (imo) is a significant decision regarding your descendants etc and what you want to leave them, because the not understanding/knowing caused me pain and sadness that i’m left with and just having to get on with. (again to some of those vipers on here: PEOPLE KNOW THEY’RE NOT ENTITLED TO PEOPLE’S MONEY/JEWELLERY but you can’t be so naive to not realise that inequality in these matters can be just brushed away so easily!)