Black Pearls can be very exotic and luxurious. They are not as typical as a white pearl, but can be very glamorous. These can be in great demand because they are less likely than the average value of the pearl white. All beads can be very rich or very good cumbersome and costly, but they can also heirlooms you are worth and then on future generations. Pearls sentimental value to maintain and retain their monetary value, if properly maintained.