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
Parable of the Pearl story. However, those who do not believe in the kingdom of heaven enough to stake their whole future on it are unworthy of the kingdom. This interpretation of the parable is the inspiration for a number of hymns, including the anonymous Swedish hymn "Den Kostliga Pärlan" ("O That Pearl of Great Price!"), which begins: <poem> O that Pearl of great price! have you found it? Is the Savior supreme in your love? O consider it well, ere you answer, As you hope for a welcome above. Have you given up all for this Treasure? Have you counted past gains as