A change in style was first experienced on the arrival in power of Madame de Pompadour, who led the way in that coquettish return to simple conditions of life which showed itself in the pastorals of the Louis Quinze epoch. It resulted in a preference for simple gold; this metal, coloured by alloys such as platinum and silver, and popular under the name of à quatre couleurs, being at most only set off by enamel painting. This later rococo period, as far as its technique is concerned, is one which has never been equalled either before or since.
An event of importance in the history of jewellery, as of art generally, was the discovery in 1755 of the city of Pompeii, succeeding that in 1713 of Herculaneum, buried for centuries beneath the ashes of Vesuvius. The journeys of artists to Italy and to Naples, and the interest aroused thereby in ancient art, a weariness with the mannerism of rococo ornament, and the whim of fashion, gradually transformed jewellery like other decorative arts, and resulted in the classicism of the style of Louis XVI. Antique forms as they then were known showed themselves in a very charming manner in well-balanced jewels, where different coloured gold took the form of classical motives in the midst of ribbons, garlands, and the pastoral subjects dear to the previous epoch. Enamel returned into fashion, and accomplished its chief triumph with painting en plein in fine transparent tones over guilloché gold. In conjunction with the art of gem setting and cutting, and metal chasing, this species of enamel produced effects which were all the more surprising, seeing that it was often confined to the smallest of spaces.
Among the first craftsmen who created, or followed the fashion, was the jeweller Lempereur. Some of his designs were published by his pupil Pouget the younger in 1762 and 1764, in a treatise entitled Traité des pierres précieuses et de la manière de les employer en Parure, the plates of which, mostly coloured, and representing models of jewellery of all kinds set with precious stones, were engraved by Mlle. Raimbau. Another pupil of Lempereur, August Duflos, published in 1760 a similar work entitled Recueil de Dessins de Joaillerie. Other French designers of jewellery at this time were: Maria, a jeweller of Paris, who issued about 1765 an important series of plates, thirty-five in number, of pendants, brooches, clasps, chatelaines, aigrettes, seals, rings, and buckles; P. Moreau (1740-1780) and J. B. Fay (1780-1790), both of Paris; and L. Van den Cruycen (1770) of Brussels.
In 1770 was published in London by T. D. Saint A new book of designs for jewellers' work containing eleven plates of ornaments of various kinds in the style of Pouget and Duflos. One of the last English jewellers of the old school was George Michael Moser (1707-1783), one of the founders of the Academy—like Fuseli, a Swiss by birth, and a native of Schaffhausen. He was originally a gold chaser—"the first in the kingdom," so Sir Joshua Reynolds described him; but when that mode of decorating jewellery was put aside in favour of enamels, he turned his attention to enamel compositions of emblematical figures, much in vogue for the costly watch-cases of the day, for chatelaines, necklaces, bracelets, and other personal ornaments. He succeeded so well in this class of work that the Queen patronised him, and he executed a considerable number of commissions for the King.
Another eminent jeweller, who was likewise a painter and enameller, was Augustus Toussaint. He worked principally with his father, a noted jeweller of Denmark Street, Soho, and exhibited at the Royal Academy from 1775 to 1778, sending in both miniatures and enamels. He died between 1790 and 1800. Several of the fine open-work jewelled frames which held the choice miniatures of the day, were made in the workshop of Toussaint the elder, and on his death his son Augustus is said not only to have retained for his own use all the examples of these frames which were in stock, but to have continued to supply a few fellow-artists, with whom he was on terms of intimacy, with the celebrated Toussaint frames.[186]
The excess of ornamentation and the desire for jewellery formed of precious stones had, since the seventeenth century, favoured the use of imitations. Rock crystal or quartz had long been employed to imitate diamonds. Forgeries and imitations which were intended to pass as precious stones will be spoken of in another place. But at this time even people of great wealth wore imitation jewels, such as certainly would not be worn by persons in a corresponding position nowadays. These made no profession of being real stones. They were recognised as imitations. The credit of the production of the first satisfactory substitute for the diamond is due to a German—Stras or Strass by name—who about 1758 established himself at Paris on the Quai des Orfévres, where he met with great success as a vendor of paste imitations of diamonds, which still bear his name. Competitors were not slow in making their appearance, and one Chéron also gave his name for a considerable time to the false diamonds that issued from his workshop. So large and flourishing did the industry in imitations become that in 1767 a corporation of joailliers-faussetiers was established in Paris.
Imitation pearls were likewise very largely worn; even ladies of high position did not disdain to wear them—"Un collier de perles fausses" occurs in the inventory of the jewels of Madame de Chamillart made on her death in 1731. False pearls first appeared in Paris about the time of Henry IV, the production of one named Jaquin, whose descendants carried on a large business in them in Paris till the middle of the eighteenth century. "So well have pearls been imitated," writes Pouget the younger, in 1762, "that most of those of fine Orient have found their way back from Europe to Asia, and are so rare in France that nowadays one scarcely sees any good specimens."
Productions such as these were rendered necessary to satisfy the luxury which from the nobility had extended over the whole middle classes, and also on account of the strained condition of French finance. Étienne de Silhouette, Controller of Finance, endeavoured to cut down expenses, and issued in 1759 an invitation to the wealthy to bring in their jewels to be converted into cash for the benefit of the Treasury. Such attempts at economy, though rewarded only by ridicule, so that portraits henceforth executed in the commonest manner were à la Silhouette, yet met with this result, as Pouget observes, that since the time of M. de Silhouette marcasite had become very much the fashion in France. In Switzerland, too, since it was forbidden to wear diamonds, ladies, he tells us, wore no other ornaments than marcasite, and spent a good deal of care and money in the setting of it. The mineral known as marcasite, a word which was spelled in many ways, is a crystallised form of iron pyrites cut in facets like rose diamonds, and highly polished. It was used for a number of ornaments. Steel, likewise cut in facets, was similarly employed.
Steel jewellery appears to have been invented in England, and from Birmingham, the centre of its manufacture, found its way all over Europe, reaching France by way of Holland. It was carried out largely by Boulton and Watt and other firms of Birmingham, Sheffield, and Wolverhampton. This steel jewellery, which was in high favour in the latter half of the eighteenth, continued to be worn until the second quarter of the nineteenth century, when it finally went out of fashion. Even after that, cut steel was still made at Birmingham, and the firm of Hipkins, one of the most prominent, continued for many years to supply the Court of Spain with buttons and buckles ornamented with it (Pl. LI, 1, 2). Steel was largely employed as mounts for the fictile cameos of Wedgwood, Tassie, Adams, and Turner, which were in considerable demand for rings, brooches and buttons. Mountings for these were also made in silver or Sheffield plate, principally the work of Thomas Law & Co., of Sheffield. In the latter part of the century England occupied a unique position with regard to the production of objects of this kind, which were eagerly sought for throughout the whole of the Continent.
Another characteristic of the changed condition of the times was the use in jewellery, together with strass, false pearls, and marcasite, of various substitutes for gold. The best-known of these substitutes was "pinchbeck," so called after its inventor, Christopher Pinchbeck (d. 1732), a clock and watch maker, of Fleet Street. This pinchbeck gold was an alloy of copper and zinc. When fused together the metals assumed the colour of fine gold, and preserved for a time a bright and unoxidised surface, though in some cases objects thus fashioned received a washing of gold. Pinchbeck was much used for cheaper jewellery of all kinds. The larger articles made of this metal were chatelaines, snuff-boxes, and étuis, while watch-cases, miniature-frames, buckles, clasps, and so forth, are to be found for the most part ornamented in relief and carefully chased. These several articles to which pinchbeck was suited, went in those days by the name of "toys". The term "Toyman" was employed by Pinchbeck himself, but the title had, of course, no reference to what are now known as toys. In France and Germany a metal composition like gold, in imitation of pinchbeck, called Similor or "goldshine," was produced, first by Renty, of Lille, about 1729, and subsequently improved by Leblanc, of Paris. But the name of the English inventor of the metal was well known in France, where it was retained in such forms as "pinsebeck" or "pinsbeck."