This photo of yours can be revised later. In PS, just click on the background with a white straw with a color scale.

If you are shooting jewelry and other demanding products, you can set up a small "studio". It's very simple, that is, set up a small table, like a fish tank, put the object to be photographed in it, fill the light around and at the top with a desk lamp or flash, and use any pattern or solid color in the background according to the desired effect.