Jewelry Ring 3D-video and stl

The job is to create an stl and 3D rotating video of a solitaire ring, with the specifications as described here and as shown in the jpg and mp4 attached to this job. 1-The final deliverable outputs need to be both the stl file (for subsequent gold casting) and rendered 360 rotating video of the ring, similar to the example mp4 video attached to this job. 2-For the video, the metal is 18K white gold (NOT yellow gold as shown in the example video). 3-The video needs to show the fully rendered 3D rotating ‘dual-ring’ configuration; meaning a rotating video showing the ring on two axes like the example (with one ring flat on the surface, and the other upright on the surface). 4-The size of the princess diamond= 5.72mm x 5.68mm x 4.12mm (use these exact dimensions for the stone). 5-Make the band shank 2.4mm width all around the shank, from top to bottom of the full shank profile. 6-The depth of the band shank is 1.3mm at the bottom, tapering up to 3mm at the shoulders connecting to the head, as shown in the attached jpg. 7-Do not use the head (with the orange x), instead use the head shown on the right-hand-side of the jpg, which is the head with the green tick. 8-The prongs need to be v-shape, as shown. 9-The band profile should be exactly as shown, with a ‘comfort-fit’ type edging applied to the full band shank. 10-The ring size = I ½ (US 4.5; Internal Diameter=15.4mm). 11-The time-frame is not super urgent, so a few days turnaround is okay at my end. 12-It's preferred if Blender was used for this project, but it's not essential. 13-Applicants need to respond with an example of a job you have personally done previously, which is similar to this job, meaning the deliverables were 3D-rotating video and stl file. Don't waste everyone's time if you haven't read this job properly and you failed to provide your past work example in your reply. Thanks in advance for your help with this job. Kind regards, James