I bought a strand of inexpensive freshwater ringed pearls and one of them split in half right at the ring line. Is this a common occurrence in inexpensive pearls? Could this happen in any ringed pearls, fresh or saltwater? Is this a consequence of over processing? Including photos because I thought the pearl anatomy was interesting! Apologies for my bad macro photography

Name:  Screenshot_20200629-132746.jpg
Views: 144
Size:  5.4 KB

Name:  Screenshot_20200629-132635.jpg
Views: 143
Size:  2.4 KB