Hi Lana,
Thank you for your purchase!
Glad to hear the color is holding up well.
So the seam you are referring to is the solder joint. Because the material we use is gold filled there is no way of hiding the seam. Gold Filled is a thick layer of gold over a base metal, so to buff it out would in fact reveal the underlying metal and strip away the gold content. Contrary to what you inferred, it is actually a sign of quality. The fact that you have a piece of jewelry with heavy gold content, over a piece of lesser or plated quality.
Hope this helps, and please let us know if you have any questions.