Cutting out photoshop images for our websites

We have a requirement for our product images to be cut out and placed on a pure white background
for our website.
We can do this ourselves- but would like to see what your service and prices would be for the work.
I am attaching a sample image of one we have done, as an example.
It features a black pearl necklace cut out and placed on a vector image neck.
I am also attaching an image of a white pearl necklace on a real display neck that needs to be cut out and placed on the vector image neck
I look forward to hearing from you.

Many thanks,

Trevor