I received a pair of South sea earrings a while ago. They are graded AAA with a silver blue overtone (that's what I asked for anyway). I like them except one of the pearls has a weird texture at the back and a blemish that looks like a scratch at the front. I am wondering whether these has a good luster for AAA and whether I should exchange the one pearl because the scratch is bothering me a bit. I know I can't see it when it's on but as I open the box my eyes are drawn to the blemish.
Thank you in advance for your help.