Jewelry Blog

>The clam coats the foreigner with nacre, the patina that gives pearls their unique appearance.
The depth of the nacre coating depends on the type of creature involved, the water it lives in, and how long the intruder is left in place before it is removed. As nacre thickness increases, so does the quality and durability of the pearl. Even cultured pearls with thicker coatings are more fragile than most other gemstones, so you must handle them carefully to keep them in the best condition. Read here