While a product shot on a plain background is important to be your main image, jewellery on a model can offer great insight to customers. The buyer can picture the size and how the jewellery would look on them better when they see it modeled on a real person, it is an excellent way to show the scale of your jewellery. Model shots can help the customer understand your brand, the look and feel and the target audience is portrayed better. But it should be kept in mind that the jewellery should be the focus of the image. The light should be hitting the jewellery directly rather than highlighting the model.