3D Art Backgrounds: as shot, drop-out, and shadow
For professional commercial presentation, white must be no color.
White is white, right?
Most commercial sites, publications, and advertising showing 3-d artwork like jewelry or sculpture show what’s called a drop-out or outline photos with a white background.
A quick way customers judge the quality and value of an item at Etsy, Amazon, Pinterest, artists’ wesites, etc. is to see if there is an obvious border around the photo with the “white” background.
There are ways to set up a photo shoot to “drop out” the subtle gray you get when shooting a white background; it requires a bright light behind the subject over exposing the background without effecting the subject. If you do that, you will lose the subtle natural shadow and though subtle it does help ground the piece and keep it from looking like it is floating. If you want to build a realistic shadow, it takes a few levels of gray and there are lots of youtube videos to help.
Often it is easier to mask or outline the piece in PhotoShop or other editing software. This may or may not be something you want to take on, but just know if you are showing your work on a white background and there is a gray box around it, people will judge your product to be consistent with the photography, even if it is at a subconscious level.