change images background color

we have around 800-1000 product images, that we need to change the background color. the images have currently white background, a sample image is attached. we need to change the background color, to something similar to the other sample images i am attaching. can you send me some samples with different background colors, like black, blue like the sample, red, green, brown and any different bases. the more creative you can be, the better, as we need to make our images look attractive. we also want to find if you can put a glow/shine around the rings like you can see in the images attached, specially to the diamonds part. we also need to put a reflect (like water reflection) for all rings, which you can also see in some samples we have around 800-1000 images to start with. when placing your bid, please attach few samples for our consideration, your best price and time required thanks