Realistic 360 Jewelry Animation

I want a photorealistic 360-degree animation that shows off a piece of jewelry as a hero item for a marketing campaign. The final turntable should capture every sparkle, reflection, and subtle material detail so a viewer feels they could almost reach out and touch the piece.

Here’s what I need from you:
• A seamless 360-degree loop, delivered in MP4 (1080p or 4K) ready for social feeds, ads, and my website.
• High-resolution still frames pulled from the same scene for use in banners and print.
• Source files (Blender, Maya, 3ds Max, Cinema 4D, or KeyShot—whichever you prefer) so I can make future tweaks in-house.

Lighting and material accuracy are critical: diamonds should refract realistically, metals should carry proper anisotropy, and the overall look must rival high-end product photography. If you can add gentle camera moves or macro-style close-ups within the loop without breaking the 360 view, even better.

I’m open to your background suggestion as long as it keeps full focus on the jewelry and supports the premium feel. Please share a few relevant samples—ideally short clips—so I can gauge realism before we lock in.