Thanks, all! And mostly thanks to Hisano for designing amazing jewelry and for going out of her way to get me her biggest pair of geode studs. Mind blown by all of it. Now I need to have these, but I'm restraining myself:
I could theoretically grab these and have a necklace made, but I have no idea where I could have that done: https://www.etsy.com/listing/245958450/9mm-purple-aubergine-circlebaroque?ref=hp_rv