Yes, very "Corteish" indeed! Many of the lighter colored Tahitians and lightly colored Cortez look very much the same, but then you have the SIZE (Tahitians win always) and the "erotochromatic" pearls...when you have those intense deep chroma colors on Tahitians, Cortez, Kamoka or Fiji...they each have their distinctive overtones, unlike the others but they also overlap in the less intense colors.
I remember Josh and I talking -years ago- about making a set of pieces of Cortez-&-Kamoka (or Kamoka-&-Cortez) pearls, but we never got that started. Wishe we had.