I know nothing formal about photography. Trial and error with a touch of OCD. I found the best way to take a clean photographs where the colors look most appropriate is natural light. Inside your home in a well-lit room with the windows open. Away from any direct sunlight cuz this will cause glare. For me this seems to work the best. If I'm trying to take a photo that shows detail, like meteorite striations, I'm going to want the room to be a bit darker. If I'm trying to show diamond Sparkle or mother-of-pearl Orient, a little bit of indirect artificial light actually works better.