Bringing back Victorian mourning jewelry

So I am in this weird place of not wanting my oma to die (because duh) while simultaneously kinda wishing she does because she's suffering currently and I don't want her to live simply because ill miss her.

But her death is close enough that I am starting to think of how to memorialize her. Shes my grandmother but has always been a mother to me. She once joked that we should turn her gallstones into jewelry... and recently I came across Victorian mourning jewelry.

While I do not want to make a ring out of her stone, I am interested in possibly doing this. I'm crafty so I would diy (likely practicing with my own hair first to get the technique down) but it seemed like it could be a personal keepsake I can always have. I know she wants cremation so I would have to ask my dad (her caretaker) for some locks of her hair once she does pass. I would maybe even braid our hair together.

Is this impossibly weird and gross?