About 1865, fine oriental pearls were sold in London for $1.25 to $1.50 per grain in sizes up to three grains. Over that the price increased gradually with the size so that five grainers were worth about $2.50 per grain; ten grainers, $5.50 per grain; twenty grainers $13.00 per grain and thirty grainers about $17.00 per grain. If their fine grade equalled ours, there has been a remarkable advance in the last forty years, as fine oriental round pearls of thirty grains to-day, are worth in the United States $240.00 per grain flat. Up to this time and after, prices were quoted very generally by the carat. Later, the method of reckoning by the square or multiple became more general, and the price went to about two dollars per carat, in London, or fifty cents per grain base for ordinary sizes, the larger ones being valued by the piece according to the individual rarity and particular qualities, as before. At the Navigator's islands in 1858, fine round pearls of one to two grains were valued at about fifty cents per grain, the price increasing until those of twenty grains were considered worth twenty dollars per grain. Second class pearls under one grain, averaging half a grain, were sold for about five cents a grain. The same grade about nine grains average, were worth about sixty-five cents per grain. A third and fourth grade brought about twenty-five and fifty per cent. less respectively. These prices, compared with those of London, indicate that fine, large, round pearls commanded better prices then in the East than they did in Europe. Seed pearls sold at Tahiti for ten to fifteen dollars per pound. The island of Labuan, a British possession in the East Indian archipelago, shipped pearls to Singapore in the sixties at an average price of ten to fifteen cents per grain. In 1871, 35 ounces of pearls shipped from Guayaquil were valued at $100.00 per ounce. As in former times, at many places where the fishing is done by independent naked divers, especially among the remote islands of the South Sea, there is no grading of pearls or definite ideas of value. The natives dispose of their pearls, as they are able, to traders, often for a very small price. It is so to-day at many points in the Sulu archipelago from Mindanao to the Tawi Tawi islands. The smaller established fisheries of the seas east of China assort roughly and sell in bulk to buyers from neighboring trading centers.