Go on the NAJA website (National Association of Jewelry Appraisers)
to find a qualified appraiser in your area. If they are cultured, an
appraiser can tell. Even our grandmothers had cultured pearls! And
if they aren't cultured, a qualified appraiser will know how to send
them off to the Gemological Institute of America for a "natural"
determination. And then can appraise the pearls based on that
Kitti de Long