[preswine]

I edited in a few additional details:
-I originally forgot to mention that I also checked the pearl under UV light to confirm it was Mexican.
-I added a few more conclusions of the lab result (some of which are relevant to the interpretation of the x-ray/drill-hole). Namely, that the pearl color is natural (undyed) and that it was grown in saltwater.
-I noted the remote possibility that the lab results would also be consistent with a round, perfectly tissue-nucleated, saltwater, mexican pearl, but that such a pearl (if it could even be grown) would be just as rare as a natural one.
-I added a comment stating that Dr Kiefert is well published on Mexican pearls in particular.
-I added some additional (and deserved) recognition for Jeremy Norris and Lore Kiefert.
-I added the name of my fiancee, Rachel Rohrs.
-Fixed typo: The pearl is from the Gulf of California, not the Gulf of Mexico.