One thing I learned in design school oh so many years ago is to have a concept and stay true to it. So with that in mind, my rule of thumb is to show that concept when displaying my jewelry at trade shows, retail shows or on the web. I also use this rule in my graphics so the company image is reinforced over and over again in a consistent way. It's important to stay fresh, but people need to know it’s ‘you’ because of the consistent style and feel.
Case in point, here are some visuals of my booth and graphics that bring this point home. Notice the elements are different, but the look and feel is consistent.
Keept that in mind when you are finding your style when creatiing jewerly. Find out what look and feel you like and start creatiing around what you love.