Edit and normalise backgrounds on product photography

**I have added an image of a peach coloured pear shaped stone (IMG_4837). Please can you provide an example of your editing using this picture and the example edited blue stone as a reference**

I need a photo editor who can edit and normalise the backgrounds for some photos of gemstones. The background needs to be cleaned up to a standardised white (as per example edited image, so not a pure white 255 RGB value). Original shadows need to be left. Dust on sensor needs retouching. On a few of the images there may be a bit of dust or hair etc that needs to be removed.
There are approximately 1,400 images that require editing.