When I first started getting into jewelry design, I faced the problem of finding quality 3D models. Often, the options were either too simple or too expensive. Then a friend suggested a site with a profile of 3D jewelry models on https://www.pinterest.com/jewelmodelnet/ - there really are a lot of diverse and detailed models. I especially liked that you can quickly find something that suits your style, and this greatly simplifies the work and inspires.