“Edison Pearls” are the latest in a LONG line of Freshwater pearl experiments are aimed taking on the legendary White and Golden South Sea pearls from Australia.
These pearls are produced by a few radical pearl farms in China, and have only been available for 2-3 years now on the markets.
Traditionally Freshwater pearls have always been what we call "tissue-nucleated". This forms a solid-nacre pearl, but the pearls have always been characterized by their Off-Round to Oval and Potato shapes which many in the industry found to be ... not ideal.
Saltwater pearls (Akoya, South Sea and Tahitians) are nucleated with a perfectly round bead nucleus, which gives the oyster a "template" to form nacre around. This eventually leads to a perfectly round pearl (hopefully!). Pearls that are perfectly round and symmetrical are pretty much The Gold Standard in the pearl industry.
So the farms began experimenting with bead nucleating their Freshwater pearl mussels in an attempt to produce perfectly round, large pearls.
And WOW have those efforts produced some AMAZING pearls!!