Please contact me before ordering and include a sketch or a picture of what you need so i could quote you accordingly. $5 will get you a simple render of 3D Jewelry model. I will revise as many times as necessary but within reason. You will only receive the final file once so choose wisely. If after receipt of the final file you realize that you want something different revisions will cost a little extra. More complex designs i will quote upon receiving and reviewing your documentation and requirements.