Recent lab examination reveals that traditional treatments such as calcium fluoride coating are still prevalent in the trade, and great care must be taken to identify them.
Read More
The New York lab received four baroque-shaped pearls with damaged nacre layers
Read MoreAn unusually large cultured pearl was filled with multiple cultured pearls, perhaps after the emergence of an original single-bead nucleus.
Read More
A rare look at natural pearls from a known Spondylus species, commonly called “thorny” oysters.
Read More
