Hello. I am looking for a little bit of information on a curious item I have found. I recently bought a box of loose jewellery at an auction. Nothing really special in the box, just as I had expected so I wasn't disappointed. However at the very bottom corner of the box was the attached picture stud pearl earring. Unfortunately, only one exists - very small about 3-4mm diameter on a gold post which is marked 9ct. Now this is where the conundrum starts for me. The makers mark (attached picture) is this a genuine Mikimoto mark? When looking at the pearl itself it looks like the sides have been "shaved" expertly so that it looks round at the top but is more rounded off around the sides (hopefully this can be seen on the pictures). Such a cute little earring but such a shame that a beautiful pearl has been shaved to removed the round appearance. I am really curious as to why this would be done? Is it purely aesthetics? Any help to calm my curious mind would be greatly appreciated. Many thanks in advance.