Please ask any questions you might have - will respond promptly. Tahitian pearls are only harvested in French Polynesia. Dark Tahitian pearls are 100% naturally pigmented, free of artificial dyes.
The color accumulates due to melanin production that darkens the pearl naturally as it forms within the shell. Tahitian pearls are the only black pearls, dark freshwater and Akoya pearls are artificially dyed. What is dark-colored freshwater or Akoya pearl? These are pearls artificially colored by nitrate of silver, as these pearls are always white in nature. If you examine them closely, you will see blotches of coagulated pigment on the surface indicating that the agent was used.
Tinted dark pearls may appear intriguing, but they have nothing in common with genuine Tahitian pearls. The item "18K White Gold 18mm XX-Large RARE Tahitian Black Pearl Diamond Cocktail Ring" is in sale since Tuesday, May 24, 2016. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Pearl". The seller is "stylenow007" and is located in Palisades Park, New Jersey. This item can be shipped worldwide.