I have an appraisal of a Mikimoto pearl pendant that I bought from Nordstrom (overpriced, but that was before I foundthis forum!). The appraisal describes the pearl as "designed by Mikimoto". I didn't think the Mikimoto company designs pearls and this appraisal is for insurance. I am concerned that in the event of loss, the insurance company will not consider this a true Mikimoto pearl, as I have never read of any pearl "designed" by Mikimoto. When I asked Nordstrom, they assured me that it is a Mikimoto pearl and that the Mikimoto Company is also a designer of pearls. ??? Also, I do not see any "M" or mark on the clasp.