The stupid sister has to make up her mind whether it's "pretty jewellery with no real meaning" or jewellery that's so important that its absence ruins weddings. And why can't she wear something that she gave "real mum" or something from her "real mum"? Isn't it insulting to wear stand-in mum's jewellery on this special day? Grabby moronic drama queen who can't even make her own logic scan.

It is sad, for Op's sister, who lost a mother at 2 and had a step mother at 3. She probably thought of step mom as her bio mom (that's basically the only mom she knows) and trying to make step mom to love her (as her real daughter) by bribing step family with jewelry. The real villains are the step mom, taking advantage of a young vulnerable girl, and a d*ck-sick dad who values lays before daughters and fails to protect his daughters from vultures.

That story is strange. Who gives precious jewellery to kids to wear, not even speaking of decisions to give it to someone? It should be kept locked (by the dad, perhaps), maybe worn on really special occasion, until the kids are mature enough to understand the value of the pieces.

Sister doesn't understand what sharing means. It does not mean you should give everything away, it means you give some and you keep some. But the jewelry pieces were hers to give or to keep; she chose to give them all away and you know OP won't get that necklace back if she lends it to sister. NTA.

This is so sad.

There are too many people who have bought dodgy dictionaries. It appears that in these wonky dictionaries "selfish" is listed as "You are not doing what I want. Do what I want, NOW!"

I was dating someone who had a kid. The kid gave me his pocket knife. I accepted it, but gave it to his mom right after. First of all she didn't know he had it(pointy things an all). And second, it was his grandfather's from his dads side. Nothing special(pretty sure it was handmade), but still a piece of family history. She would've asked for it back, if she ever saw me with it a 100%. So, I don't get this dads inaction. New mom robbing your young daughter blind doesn't raise any red flags or concerns? Even suppose it wasn't an inheritance, it's still real jewelry that step monster took away under pretense of a gift. If it was a gift, where's the jewelry she was given back? If it was an exchange. What was she given in return? I am not sure this guy deserves to be called "dad" by those two if he is not looking out for their best interest.

The step family are soul suckers who took advantage of a little girl who just wants to belong somewhere. OP has no chance against them. OP was too young herself to protect her little sister and doesn't realize how easily influenced her sister can be. I suspect her little sister is becoming old enough to realize she lost a part of herself and is trying to reconnect. I still wouldn't loan it to her, but I like the idea of replicating the original as her wedding gift. I think the two sisters should go to therapy together. They have words that need to be said to each other. Meanwhile, the dad sux, too, for allowing all of this to happen.

I bet the sister was manipulated to give the jewelry to those horrible monsters.

What a terrible family to have. I feel sorry for the OP

Need to 86 the whole family, nothing worthwhile is forthcoming from continued interaction.

Since sis considers step her mom why not ask her for a momento to wear.

If the little sister didn't care enough about the memory of her bio-mom (admittedly, she was really too young to have formed that much of an attachment) that she willingly gave her step-mother and step-sister the jewelry, then she doesn't want that necklace just to wear at her wedding because of sentimental reasons. She wants it for herself to keep, give to the steps, or to sell. And for some reason, considering the attitude of the step-mother, I have a nasty feeling that she's in little sis' ear about the jewelry. My guess is that the reason little sis doesn't ask for some of what she gave them, is because she knows it's gone. Probably fenced. OP is NTA, and she's right to stand her ground on this.

The sister did nothing wrong in gifting the jewellery she herself inherited from her mother. It belonged to her, and her sister can be sad about her decisions but should not hold that against her. The stepmother should have encouraged the child to keep at least some of the jewellery, and should have taken good care of any she was given, knowing that it was a family heirloom and the stepdaughter who gave it to her might want to wear it herself some day. The main issue here is the theft of the bracelet: even though it was eventually returned, that was not hers to give away, and it's very worrying that the family apparently thought the OP was in the wrong for insisting that her own heirloom which she lent in good faith should be returned as agreed. It sounds to me like the wicked stepmother has been exerting undue influence. OP is clearly NTA here and should not entrust her late mother's necklace to any of these relatives.

ARGH. Didn't mean to hit post quite yet. I saw my son's friend a few mos later and his father was already engaged. I think he was seeing her who his wife was dying from brain cancer. I got the impression that Mike and his sisters don't like the stepmother

Ngl I’m pretty sure this one is fake. The “gave them all of our mum’s jewelry” was what really did it for me but it just seems unrealistic.