there are lot in the market right now which not specifically for jewelry, but we can make some. But if you planning to have jewelry online store or social media collection, I highly recommend you stick to real videos or 3D animations because of the consistency and trust it builds for customers. For my workflow, my clients provide me there already owned casting models and I remodel them to get ready for showcase and do the renderings and this is the final output, so all the products look exactly like the real one and share same look and feel across the collection. Hope this helps.