Pearl with a mother of pearl bead center. In the cultured pearl industry, the resources used to create a mistaken all nacre baroque pearl is a drain on the production of round cultured pearls. Therefore, they are trying to improve culturing technique so that keshi pearls do not occur. All nacre pearls may one day be limited to natural found pearls. Today many "keshi" pearls are actually intentional, with post-harvest shells returned to the water to regenerate a pearl in the existing pearl sac. Tahitian pearls, frequently referred to as black pearls, are highly valued because of their rarity; the culturing
The Pearl (novel) his head blown off in the pearl, throws it into the ocean. Steinbeck began writing the story as a movie script in 1944, and first published it as a short story called "The Pearl of the World" in "Woman's Home Companion" in December 1945. The original publication is also sometimes listed as "The Pearl of La Paz". He expanded it to novella length and published it under the name "The Pearl" by Viking Press in 1947. As he was writing the novella version, he was frequently travelling to Mexico where the film version, co-written with Jack Wagner, was being filmed.