Thanks so much. I’ve only worn it today, but it doesn’t flip over. If I’m looking in the mirror and move around it can tilt forward some but then seems to correct itself. Maybe since the stone is so flat and thin and light it doesn’t tilt too much. The size I bought was 5.8mm width but it looks like that size sold out. Here is a link to a 6.5mm one. The basket seems somewhat cheaply made but for a little pendant like this I don’t mind. I didn’t want to spend a lot on a custom mounting. https://www.amazon.com/Prong-Round-Basket-Setting-6-5mm/dp/B0041SW58M?ref_=ast_sto_dp