Japanese jewellery is unusual among the world's major decorative-arts traditions in that, for most of its history, it consisted not of rings and necklaces in the European sense but of hair ornaments, sword fittings and devotional objects. The break with this older tradition came rapidly with the Meiji Restoration of 1868, after which Western jewellery forms were adopted within a single generation. Modern Japan has since become both a sophisticated consumer market for international fine jewellery and the producer of a distinctive school of design known abroad as Japonisme.

Prehistoric and Ancient Adornment

The earliest body ornaments in the Japanese archipelago are Jōmon-period beads of pierced stone, animal tooth and shell, dating from at least 5000 BCE. The magatama, a curved comma-shaped bead, became a signature form during the Yayoi and Kofun periods and was carved most prestigiously from Itoigawa nephrite from Niigata Prefecture, with lesser examples in agate, jasper and rock crystal. Magatama appear with bronze swords and bronze mirrors among the highest-status grave goods of the early imperial period and are central to the symbolism of the Three Sacred Treasures of the imperial line.

The Long Eclipse

From the Heian period onward, body jewellery in the Western sense largely fell out of fashionable use among the Japanese aristocracy. The aesthetic preference instead concentrated decoration on textile, lacquer and the elaborate fittings of swords and personal accessories. The kanzashi, an ornamental hairpin, became one of the few enduring sites of personal adornment, often executed in tortoiseshell, lacquer, coral and silver, and sometimes set with small stones. Inro and netsuke, the lacquered medicine cases and toggles worn at the obi, hosted some of the most accomplished miniature decorative work of the Edo period. Buddhist rosaries and obi-clasps were further conduits for the use of carved jade, agate, amber and crystal.

Sword fittings, the tsuba and the kozuka, kogai and menuki of mounted blades, supported a tradition of metalwork in which alloys particular to Japan were brought to extraordinary refinement. Shakudo, an alloy of copper with a few percent of gold patinated to a deep blue-black; shibuichi, a copper-silver alloy of various proportions; and a virtuoso command of inlay using gold, silver, copper and these alloys produced sword fittings that influenced Western Japonisme jewellers a century later.

Meiji Modernisation

The Meiji Restoration ended the wearing of swords by the samurai class in 1876, removing the principal market for sword-fittings craftsmen. Many of these makers redirected their skills to export jewellery and to mixed-metal objets in the new taste, working through trading houses and through showrooms set up by makers such as the Komai company of Kyoto, whose damascened iron and gold pieces won prizes at the international expositions. The opening of the country also reintroduced Western jewellery forms, and by the 1880s rings, brooches, necklaces and earrings on the European model were being made and worn in Japan.

Pearl culturing, developed by Kokichi Mikimoto from the 1890s onward, transformed the country's standing in the gem trade. Mikimoto pearls and Akoya pearls more generally became the dominant Japanese contribution to twentieth-century jewellery, and the firm Mikimoto remains a globally recognised name in cultured pearl jewellery.

The Twentieth Century and Postwar Boom

The interwar and immediate postwar period saw Japanese jewellery making take on increasingly Western form and idiom, with platinum bridal jewellery, diamond solitaires and coloured-stone cocktail pieces displacing the older taste in successive waves. The bubble economy of the late 1980s saw Japan emerge as the largest single national market for fine diamonds and high-quality coloured stones in absolute terms, with strong appetites for ruby, sapphire, paraiba tourmaline and demantoid garnet. The Japanese trade also became globally influential in setting expectations for pearl quality, white-diamond colour grading and ideal-cut symmetry.

Contemporary Japanese Design

Modern Japanese fine jewellery is characterised by particular attention to platinum work, very precise stone setting, and a continuing aesthetic preference for restraint and asymmetry which traces back through the Japonisme movement to the Edo-period decorative tradition. Designers including Kazuo Ogawa, Tomohiro Yasuda and the next generation of independent makers are increasingly visible internationally. Bridal jewellery in Japan favours platinum 950 or 1000 over gold, with very high-clarity round-brilliant diamonds, hearts-and-arrows symmetry and small accents rather than large mountings.

Trade Infrastructure

The Japan Jewellery Association coordinates nomenclature, and the Japan Mint operates a voluntary precious-metal hallmark service from Osaka. International Jewellery Tokyo (IJT) is the largest annual gem and jewellery trade fair in Asia outside Hong Kong, and the Tokyo and Yokohama trade is active in the secondary market for both Japonisme antiques and twentieth-century Western signed pieces.