The Persian Gulf pearls are commonly not so white as those from Ceylon, but they are found of larger size, and it is believed in Asia that they retain their luster for a greater length of time. Many of the Persian Gulf pearls, especially those from sudaifee and zinni shells, have a distinctly yellow color. Tavernier made a curious explanation of this. He stated:

As for the pearls tending to yellow, the color is due to the fact that the fishermen sell the oysters in heaps, and the merchants awaiting sometimes up to 14 or 15 days till the shells open of themselves, in order to extract the pearls, some of these oysters lose their water during this time, decay, and become putrid, and the pearls become yellow by contact. This is so true that in all oysters which have retained their water, the pearls are always white. They are allowed to open of themselves, because if they are opened by force, as we open our oysters in the shell, the pearls may be damaged and broken. The oysters of the Manar Strait open of themselves, 5 or 6 days sooner than those of the Gulf of Persia, because the heat is much greater at Manar, which is at the tenth degree of North latitude, while the island of Bahrein is at about the twenty-seventh. And consequently among the pearls which come from Manar there are few yellow ones found.[[120]]

Tavernier was more familiar with the pearls themselves than with the methods of the fishery. The yellow color is not due to contact with the putrefactive flesh, and is independent of the manner of opening. In fact, if putrefaction caused the yellow color, this shade would be far more prevalent in the Manaar or Ceylon pearls than in those from Bahrein, for practically all of the Ceylon oysters are permitted to putrefy, whereas only a portion of those in the Persian Gulf are opened in this manner. Furthermore, notwithstanding that it is nearer the equator, the heat at Manaar during the pearling season is not to be compared with that at Bahrein when the season is at its height, for the Persian Gulf during July and August is notorious as one of the hottest places on the globe.

While the great bulk of the pearls are either white or yellowish, these fisheries yield a few pink, bluish, gray, and occasionally even black pearls. These unusual colors are not especially prized. A curious and remarkably detailed story has gone the rounds in which the qualities of Persian and Ceylon pearls are compared, to the disparagement of the latter, and during the last hundred years few accounts have been published of this fishery without recording it. We notice it first in Morier’s “Journey through Persia in 1808 and 1809,”[[121]] but possibly it antedated that report. The statement is that the pearls of Ceylon peel off, while those of Persia are as “firm as the rock on which they grow”; and though they lose in color and luster one per cent. annually for fifty years, they still lose less than those of Ceylon, and at the expiration of the fifty years they cease to diminish in appearance.

The pearl output in the Persian Gulf at the present time appears from the official returns to exceed four million dollars annually at local valuation. The exports in 1903 were reported at £827,447, and in 1904, £1,077,241. It is generally understood that all of the pearls are not entered in the official figures, and the valuations in the markets of Asia and Europe are greatly in excess of these amounts. The profits of the fishery are divided among a great number of persons. A large percentage goes to the shrewd bunnias from India, who finance the fishery operations, and who, by all sorts of tricks connected with advances of supplies, valuation of the catch, etc., manage to make a very good thing out of the business. It is nothing unusual for the valuation of a lot of pearls to double and even treble after leaving the hands of the fishermen.

While many of the gulf pearls—and especially of the small seed-pearls—go to Bagdad, the great bulk of them are sold to representatives of Hindu and Arab merchants of Bombay for shipment to that city, which to the Bahrein fisherman is the heart of the outside world. Few of the pearls go directly into Arabia or Persia, as the certain sale in the larger Bombay market is preferable to a sometimes higher but less regular price in other markets. Indeed, pearls may usually be purchased at a less cost in India than a stranger would be obliged to pay at Bahrein. The Bombay merchants “sow the earth with Orient pearl,” dealing direct with London, Paris and Berlin, and with the oriental jewelers. Most of the yellow pearls find oriental purchasers, with whose dark complexions they harmonize better than the silvery white ones. They are also more popular because of a belief existing throughout the East that they are less likely to lose their luster with the lapse of years.

The shell of the pearl-oysters is not used locally, but large quantities are exported to Europe for manufacture. Although it is the smallest and cheapest produced in the gulf, yet, owing to the enormous quantity taken for their pearls, the shell of the mahar (Margaritifera vulgaris) constitutes the bulk of the exports. Formerly most of the shipments were made from the harbor of Lingah, hence it is known in the markets of Europe as “Lingah shell.” But in the last three or four years, much of it has been transported to Europe via Bander Abbas and Bushire. A German firm at Bahrein is extensively employed in exporting this shell, and several Indian merchants are also engaged in the trade. The total exports in 1906 amounted to 3262 tons, valued at $26,408 according to the port returns, but worth about $135,000 in Europe. Very large quantities are received in London, and over 2500 tons have been offered at auction in a single year. This shell is very small, averaging about three inches in diameter and about one and a half ounces in weight. It is the cheapest of all mother-of-pearl. The best quality sells in London for ten to twenty shillings per hundredweight, but the ordinary grade is worth usually less than nine shillings, and sometimes as low as three shillings per hundredweight. America formerly imported it, but few lots have been received since the exploitation of the Mississippi shell about fifteen years ago.

The shell of the larger species of pearl-oysters in the Persian Gulf is worth considerably more than the “Lingah shell,” selling in Europe for £12 to £60 per ton, yet manufacturers consider it as furnishing only poor qualities of mother-of-pearl. Several hundred tons are exported annually. It measures six or seven inches in diameter and is used principally in making cheap grades of buttons.

THE PEARL FISHERIES OF CEYLON

Errors, like straws, upon the surface flow;