Hello Lee!
Genuinely nice pieces! I specially love the large silvery Akoya earrings
Look, this is my take on the issue...when you place pearls next to each other it is quite easy to notice the difference...even with very small differences. BUT, when you wear the earrings and the necklace, they are apart from each other and the differences become smaller...also earrings are like "side-worn" and not "full frontal" so they also are less noticeable, and then the hair...skin tone...you add things up and they become far less noticeable.
Why don't you wear them together, snap a photo and see for yourself? I am sure they would exchange them for more pinkish colored pearls...but try it them out! They look gorgeous!