The so-called Indian pearls have a faint rosy tint with much orient. These are generally pearls from the Ceylonese fisheries that are sold from the Bombay side. The term “Madras white” describes the whiter varieties, there being a preference for these in Madras, while the rosy, yellow, and darker shades are favored in Bombay.
Australian pearls are generally a pure waxy white and lustrous, often with a silver-white sheen, extremely brilliant and beautiful.
Nearly all the Venezuela and Panama pearls have a faint golden-yellow tint, very often extremely lustrous, and are especially desired by the darker skinned people and brunettes.
The preference at various times has varied with different peoples: in China and India, golden-yellow and satin-yellow pearls are preferred; from Panama we have the very white; in Bombay the yellow pearls from the Persian Gulf are highly appreciated.
Yellow pearls from other shells than the pearl-oyster are frequently offered for sale in the East, where they are greatly appreciated, although they find little favor in England. Some of these pearls are attributed to the pearly nautilus (Nautilus pompilius). This may be the case with those that have a pearly luster, but those that have the appearance of porcelain, and are as bright as polished china, are certainly not from this shell, but evidently from the large Melo or other shells of that character. Some may come from the large conch (Cassis madagascarensis). A yellow pearl, very perfect in form and color, and weighing more than one hundred grains, was shown at the Paris Exposition of 1889 and was valued at 50,000 francs.
Wonderful golden-yellow pearls with a saffron tint are unusually lustrous and beautiful. One of the most remarkable pearls of this character is of a brilliant golden-yellow color which belongs to an American lady, and weighs 30½ grains. These pearls are from Shark’s Bay, West Australia, and only a limited number of them are found annually.
Black pearls do not seem to have been regarded with any favor by the ancients, and we find no mention of them by medieval writers. Only fifty years ago a perfectly round, black pearl, weighing 8 grains, was sold for £4 ($20); to-day this pearl would easily bring £100 ($500). Empress Eugenie, the wife of Napoleon III, may be said to have brought them into favor; she owned a splendid necklace of black pearls which was sold at Christie’s, after the fall of Napoleon, for the sum of £4000 ($20,000). Some time later, the Marquis of Bath bought, at Christie’s, the pearl which formed the clasp of the necklace, paying £1000 ($5000) for it; he destined it for the center of a bracelet.
Greenish-black pearls are perhaps valued higher than any other colored pearls, if they have the proper orient; this is probably partly owing to their rarity. A bluish-black pearl possessing a fine orient commands almost the same price as a pure black pearl. Those which are found in the Placuna placenta are often of a dull gray hue, while those produced by the Pinna squamosa are generally brown in color.
Baroque pearls were formerly much worn and appreciated in Spain and Poland. Their price varies greatly, according to their size, their beauty, and also to their scarcity in any particular place. The pieces of pearl detached from the shells—often half-pearl and half mother-of-pearl, and called “de fantaisie”—are always very irregular in form, and sometimes offer a certain resemblance to a part of the human or animal form.[[405]]
How is it that such quantities of jewels are continually brought from the East, and such a wealth of them continues to exist there, when there are now no very extensive mines that maintain a constant supply? The reason is that from time immemorial, precious stones have been the form in which wealth, in those lands, has been hoarded and preserved. Until very recently, in the Orient, interest-bearing securities have been unknown; and hence jewels have been sought and kept as an investment, and sold only when money was needed for special purposes, as in times of war, famine, or other emergency.