Japanese Jewelry Industry: Market Structure, Manufacturing and Retail
Japan's jewelry industry is not concentrated in a single city or business model. It operates as a network of specialized manufacturing, trading, pearl-cultivation and retail centers. Kofu and the wider Yamanashi jewelry cluster are closely associated with gemstone processing and jewelry manufacturing; Tokyo combines luxury retail in Ginza with the specialist jewelry trade around Okachimachi; Kyoto supports distinctive design and craft traditions; and pearl-producing areas in Mie, Ehime and Nagasaki connect marine cultivation with processors, wholesalers and luxury brands.
Japan also remains a substantial consumer jewelry market. Yano Research Institute estimated the domestic jewelry retail market at approximately ¥1.0423 trillion in 2023 and forecast approximately ¥1.0953 trillion for 2024. These figures refer to retail value, not domestic manufacturing output, wholesale turnover, imports or exports. That distinction matters because much of the jewelry sold in Japan incorporates internationally sourced diamonds, colored gemstones and precious metals even when design, processing, finishing or branding takes place domestically.
For buyers and jewelry businesses, the practical lesson is straightforward: Japan should be understood as a chain of specialized locations rather than as one homogeneous market. Manufacturing, loose-stone trading, pearl production, bridal jewelry, luxury boutiques, regional department-store retail and independent ateliers frequently operate through different geographic networks.
Explore the Jewelry Industry Across Japan
- Tokyo — luxury retail, wholesale trading, designers and specialist jewelry businesses
- Kofu — gemstone processing, jewelry manufacturing and OEM production
- Osaka — major Kansai commercial and retail market
- Kobe — luxury retail and the historic home market of TASAKI
- Nagoya — major Chubu retail and custom-jewelry market
- Yokohama — metropolitan luxury and department-store retail
- Kyoto — jewelry design shaped by the city's craft and aesthetic traditions
- Fukuoka — principal jewelry retail center in northern Kyushu
- Sapporo — principal jewelry retail market in Hokkaido
- Hiroshima — important regional jewelry retail center in western Honshu
- Ise — part of Mie Prefecture's pearl and jewelry geography
- Shima — closely connected with Ago Bay and Japanese cultured pearls
- Toba — historically significant to Japan's cultured-pearl story
- Sendai — major jewelry retail market in the Tohoku region
- Kanazawa — craft-oriented regional market with strong precious-material traditions
- Okayama — regional jewelry retail and commercial center
- Niigata — regional jewelry and watch retail market
- Shizuoka — regional jewelry retail center between Tokyo and Nagoya
- Hamamatsu — western Shizuoka commercial and jewelry market
- Himeji — regional jewelry market in Hyogo Prefecture
- Nagasaki — part of Japan's important pearl-cultivation geography
- Kitakyushu — northern Kyushu regional retail market
- Kumamoto — major regional jewelry retail center in Kyushu
- Kagoshima — southern Kyushu jewelry retail market
- Matsuyama — Ehime's main urban jewelry market within a prefecture important to pearl cultivation
- Takamatsu — commercial jewelry center for Kagawa and northeastern Shikoku
- Gifu — regional Chubu jewelry market
- Fukui — Hokuriku regional jewelry market
- Toyama — regional jewelry retail market on the Sea of Japan coast
- Nara — regional jewelry market within the wider Kansai economy
- Saitama — large metropolitan consumer market north of Tokyo
- Chiba — metropolitan retail market east of Tokyo
- Kawasaki — part of the Greater Tokyo-Yokohama consumer market
- Naha — Okinawa's principal urban jewelry retail center
- Utsunomiya — regional jewelry market in Tochigi Prefecture
- Takasaki — important commercial center in Gunma Prefecture
- Kochi — regional jewelry market in southern Shikoku
- Miyazaki — regional jewelry market in southeastern Kyushu
- Oita — regional jewelry retail center in northeastern Kyushu
- Fukuyama — eastern Hiroshima Prefecture's regional commercial and jewelry market
How the Japanese Jewelry Market Is Structured
Japan's jewelry sector extends from gemstone and precious-metal sourcing to cutting, casting, setting, polishing, wholesale distribution, branded retail, bridal jewelry, repairs, remodeling and the secondary market. These activities do not necessarily take place within the same company or city.
Yano Research Institute estimated Japan's domestic jewelry retail market at ¥1.0423 trillion in 2023. Its subsequent research forecast a market of approximately ¥1.0953 trillion for 2024, supported by higher precious-metal prices, higher selling prices and inbound demand. The figures are retail-market estimates and should not be interpreted as the value of jewelry physically manufactured in Japan.
This distinction is fundamental. A diamond ring sold in Ginza may combine a diamond sourced through international channels, platinum or gold acquired through a precious-metal supplier, specialist manufacturing or setting undertaken elsewhere in Japan, and final sale through a Tokyo flagship boutique. The Japanese jewelry industry therefore functions as an interconnected value chain rather than a vertically integrated market concentrated in one location.
Kofu and Yamanashi: Japan's Specialized Jewelry Manufacturing Cluster
Kofu, the capital of Yamanashi Prefecture, occupies a distinctive position in Japanese jewelry manufacturing. The area's jewelry tradition developed from crystal resources and the techniques used to process them. As local raw crystal ceased to be the industry's principal material base, the accumulated cutting and polishing expertise evolved into a broader jewelry sector working with gemstones and precious metals sourced from international markets.
The importance of Kofu lies less in consumer-facing luxury streets than in industrial depth. The local ecosystem encompasses planning, design, gemstone processing, precious-metal work, production, finishing and distribution. This makes Yamanashi particularly relevant to companies researching Japanese OEM and ODM manufacturing, gemstone cutting, small-series production and specialist craftsmanship.
Kofu also demonstrates why the term “Made in Japan” can describe a production network rather than the headquarters of the brand printed on the box. A Tokyo, Osaka or Kyoto jewelry company may develop a collection under its own brand while relying on specialist manufacturers, setters, polishers or other production partners elsewhere.
The region's educational infrastructure reinforces this manufacturing identity. Yamanashi Prefectural Jewelry Art College provides specialized jewelry education in an area where professional skills are supported by an established local production ecosystem.
Tokyo: Ginza Luxury Retail and Okachimachi Jewelry Trade
Tokyo performs several different roles simultaneously. Ginza is associated with luxury flagships, department stores, high-value branded jewelry and international maisons. Okachimachi, in Taito City, represents a very different commercial environment: specialist jewelry companies, loose stones, findings, precious-metal products, tools, repair services, processing and wholesale-oriented trade are concentrated within a comparatively small urban area.
Okachimachi should not be simplified as a district where every shop is a wholesaler or where every visitor automatically receives wholesale pricing. Businesses operate different models. Some primarily serve the trade; others sell directly to consumers; some combine manufacturing, processing, wholesale and retail activities.
This distinction makes the district particularly useful for market research. A professional buyer may encounter loose diamonds, colored gemstones, pearl products, chains, findings, mountings and finished jewelry within the same broader commercial ecosystem. A private buyer, meanwhile, may find consumer-facing jewelry stores without entering a formal B2B relationship.
Osaka, Nagoya, Kyoto and Kobe in Japan's Jewelry Geography
Outside Tokyo and Yamanashi, Japan has several major urban jewelry markets with different commercial profiles. Osaka is one of the country's largest commercial centers and supports department-store jewelry, luxury boutiques, bridal specialists, independent jewelers and business-to-business activity across the wider Kansai economy.
Nagoya serves the large Chubu consumer market and is relevant to bridal, bespoke and branded retail. It is also closely associated with K.UNO, a Japanese company known for made-to-order jewelry and extensive custom-design capabilities.
Kyoto contributes a different identity. Its jewelry sector exists within a city internationally associated with traditional crafts, design disciplines and highly developed decorative aesthetics. NIWAKA is an important example of a contemporary Japanese jewelry house whose brand identity draws strongly on Kyoto cultural references.
Kobe is important both as a major luxury-consumption market and in the history of TASAKI, a Japanese jewelry company strongly associated with pearls and diamonds.
Major Japanese Jewelry Brands and Business Models
MIKIMOTO
MIKIMOTO occupies a foundational place in the commercial history of cultured pearls. Kokichi Mikimoto succeeded in producing cultured pearls in Japan in 1893, and the company subsequently developed into an international luxury jewelry house. Pearls remain central to the brand, although its collections extend beyond simple pearl strands into high jewelry, diamond jewelry and contemporary designs.
For market analysis, MIKIMOTO is important because it illustrates how Japanese pearl cultivation, selection, jewelry design, luxury branding and international distribution can form different stages of the same value chain.
TASAKI
TASAKI was founded in 1954 and developed around pearls before expanding its position in diamonds and contemporary fine jewelry. Its modern collections demonstrate that Japan's pearl sector is not confined to conservative necklaces: pearls are increasingly incorporated into fashion-led and high-jewelry design.
NIWAKA
Kyoto-based NIWAKA is particularly relevant to the bridal and luxury sectors. Its jewelry frequently uses Japanese names, cultural references and visual narratives connected with landscapes, seasons and traditional aesthetics. The company illustrates how regional identity can become part of a contemporary luxury proposition without reproducing historical jewelry literally.
K.UNO
K.UNO is closely associated with custom-made and made-to-order jewelry. Its model emphasizes consultation, design development, remodeling and individualized production alongside standard collections. It provides a useful contrast with conventional inventory-led jewelry retail, where consumers select primarily from completed pieces.
Gimel
Gimel, associated with Ashiya in Hyogo Prefecture, represents a more atelier-oriented segment of Japanese high jewelry. The house is known for detailed gem setting, carefully composed color and nature-inspired jewelry. Its scale and positioning differ substantially from mass-market chains and large international luxury houses.
KATAOKA
KATAOKA represents Japan's internationally visible independent designer-jewelry segment. Its work is associated with fine proportions, detailed setting and delicate jewelry construction. The brand illustrates another important part of the Japanese market: small specialist houses capable of reaching international clients without adopting the scale of a large corporate jewelry group.
Japan's Pearl Industry: Akoya Pearls and Regional Specialization
The cultured-pearl industry is one of Japan's most internationally recognizable jewelry-related sectors. Akoya pearl cultivation has important connections with coastal areas of Mie, Ehime and Nagasaki prefectures, where suitable marine conditions and accumulated cultivation expertise support pearl production.
Mie is especially important to the historical geography of cultured pearls. Toba, Shima and Ise form a useful regional sequence for readers studying the relationship between pearl cultivation, tourism, retail and the broader jewelry industry around the Ise-Shima area.
Ehime Prefecture is another important pearl-producing region. Matsuyama, although an urban retail center rather than a pearl farm itself, provides a useful gateway for understanding Ehime's wider pearl economy. Nagasaki likewise belongs to a prefecture with documented pearl-cultivation activity.
Akoya quality cannot be reduced to a single label. Luster, surface condition, nacre, shape, color, matching and size all influence commercial assessment. Laboratory reports can add useful independent information for higher-value products, but buyers should examine exactly what a particular report certifies rather than assuming that every Japanese Akoya strand carries the same grading system.
Gold, Platinum and the Economics of Japanese Jewelry
Gold and platinum prices affect Japanese jewelry at several stages: raw-material procurement, manufacturing cost, inventory replacement value, retail pricing and the economics of jewelry recycling. Exchange-rate movements also matter because Japan imports substantial quantities of materials used by the jewelry industry.
Platinum has a particularly visible place in Japanese bridal jewelry. Pt900 and Pt950 are commonly encountered fineness designations, while gold jewelry is frequently sold in alloys such as K18. The appropriate alloy cannot be determined from purity alone. Ring construction, setting style, alloy composition, intended wear and manufacturer specifications all affect practical performance.
This is why a simple equation such as “higher fineness equals better jewelry” is misleading. Precious-metal content is one measurable characteristic; durability, workmanship, stone setting, finish, design and after-sales support are separate characteristics.
Precious-Metal Fineness and Japan Mint Certification
Japan does not use the same compulsory hallmarking model found in some European jurisdictions. The Japan Mint operates a fineness-certification service for precious-metal wares submitted for examination. Products that satisfy the applicable examination requirements can receive Mint certification marks indicating the precious metal and fineness.
The practical implication is important: absence of a Japan Mint mark should not automatically be interpreted as evidence that an item is counterfeit or of incorrect fineness. Buyers should examine the complete identification of the piece, including fineness markings, manufacturer or brand information, sales documentation and any relevant independent laboratory documentation.
For imported or exported jewelry, customs classification, origin, material composition and the purpose of the transaction can affect the applicable procedures. Businesses should verify current Japanese customs and tax requirements for the exact product rather than applying rules for one jewelry category to every precious-metal or gemstone item.
How the Japanese Jewelry Market Works Beyond the Storefront
A theoretical jewelry supply chain appears linear: raw material enters a factory, a manufacturer makes the product, a wholesaler distributes it and a retailer sells it. The Japanese market is often more specialized.
A single finished piece can involve a gemstone dealer, cutter, casting specialist, setting workshop, polishing specialist, brand owner, distributor and retailer. Some companies integrate several of these functions; others deliberately concentrate on one technical process.
This is particularly visible when comparing Ginza and Kofu. Ginza provides an international luxury-retail environment, but it should not be treated as a proxy for Japanese manufacturing. Kofu's significance lies in production capabilities that are less visible to the final consumer.
Okachimachi creates another overlap. The conventional distinction between “wholesale district” and “retail district” is too simple because businesses there can serve professional and private customers through different channels. Understanding the individual company's role is therefore more useful than relying on the district label alone.
Four Practical Ways the Japanese Jewelry Supply Chain Connects
Akoya Pearls From Production Region to Luxury Retail
Consider the documented structure rather than a fictional customer. Akoya pearls can originate in producing areas such as Mie, Ehime or Nagasaki, move through sorting and processing, and ultimately appear in branded jewelry sold in Tokyo, Osaka or international markets. MIKIMOTO and TASAKI demonstrate how pearl expertise can be transformed into branded finished jewelry rather than remaining solely a raw-material business.
Jewelry Design Connected With Kofu Manufacturing
A brand does not need to own every production process to sell domestically produced jewelry. Kofu's industrial ecosystem allows brand owners to access specialized skills in gemstone processing, precious-metal work and manufacturing. This explains why researching the manufacturer and researching the consumer brand are not always the same task.
Custom Jewelry Through an Integrated Design Model
K.UNO demonstrates another structure: custom design is part of the consumer proposition itself. Instead of selecting only from finished inventory, a customer can enter a process involving consultation, design and production. For researchers, this is a useful example of vertical integration between retail interaction and manufacturing capability.
Independent Verification of Precious-Metal Fineness
The Japan Mint system provides a separate model. A qualifying precious-metal article can be submitted for fineness examination, and items that pass can receive the relevant Mint certification mark. The institution providing the fineness certification is therefore distinct from the company that designed, manufactured or sold the jewelry.
Choosing the Right Japanese Jewelry Market for Your Purpose
The appropriate location depends on what the buyer or business actually needs.
- Luxury branded jewelry: Tokyo, Osaka, Nagoya, Kyoto, Kobe and other large metropolitan retail centers provide department stores, flagships and specialist boutiques.
- Jewelry manufacturing and production research: Kofu and the wider Yamanashi cluster deserve separate investigation because of their concentration of jewelry-processing capabilities.
- Loose stones, components and specialist trading: Tokyo's Okachimachi area is particularly relevant because of its concentration of jewelry-related businesses.
- Japanese cultured pearls: research should extend beyond retail cities to pearl-producing prefectures, especially Mie, Ehime and Nagasaki.
- Custom and made-to-order jewelry: compare specialist ateliers and integrated custom-jewelry companies rather than relying solely on luxury-brand boutiques.
- Regional retail: cities such as Hiroshima, Fukuoka, Sapporo, Sendai and other prefectural commercial centers can be more relevant than Tokyo when studying local consumer demand.
Manufacturer, Brand, Wholesaler and Retailer Are Not the Same
A manufacturer is primarily concerned with making jewelry or completing specific production processes. A brand controls product identity, positioning and presentation but may manufacture internally, externally or through a combination of both. A wholesaler distributes materials or finished products to other businesses. A retailer sells to the final consumer.
Japanese jewelry companies can occupy more than one category. A business may manufacture jewelry and operate its own stores; a specialist trader may serve both professional and private customers; a pearl company may participate in cultivation, processing, design and retail.
For B2B research, the relevant question is therefore not simply “Is this a Japanese jewelry company?” but “Which parts of the jewelry value chain does this company actually control?”
Luxury Retail, Specialist Trade and Regional Jewelry Markets
Ginza and Okachimachi illustrate two very different forms of jewelry concentration within the same city. Ginza emphasizes brand environment, presentation, flagship retail and luxury service. Okachimachi emphasizes specialist trade, materials, components, technical services and a mixture of B2B and consumer activity.
The comparison changes again outside Tokyo. Osaka serves the huge Kansai commercial market; Kyoto connects jewelry with a distinctive craft and design culture; Kobe has strong luxury-retail significance; Nagoya anchors the Chubu market; Fukuoka is a major commercial center for Kyushu; and Sapporo performs a comparable role in Hokkaido.
These cities should not be described as interchangeable “jewelry hubs.” Their importance comes from different combinations of population, retail infrastructure, local companies, craft traditions, manufacturing capabilities and regional distribution.
Common Mistakes When Researching Jewelry in Japan
- Confusing a brand with its manufacturer. A Japanese brand name does not prove that every production stage occurs at the company's headquarters. Check the actual production model and product documentation.
- Assuming Tokyo represents all Japanese jewelry production. Tokyo is critical for retail and trade, but Kofu and Yamanashi have a specialized manufacturing role. Separate retail geography from production geography.
- Interpreting retail-market value as manufacturing output. A national retail-market estimate measures consumer sales value under the research methodology used; it is not the same as factory shipments, wholesale turnover or exports.
- Assuming every Okachimachi business offers the same wholesale terms. Business models differ. Confirm minimum quantities, account requirements, payment terms, product origin and whether the quoted price is retail or trade pricing.
- Judging pearls from the word “Akoya” alone. Akoya identifies a pearl category, not a uniform quality level. Compare luster, nacre, surface, shape, matching, size and documentation.
- Treating the absence of a Japan Mint hallmark as proof of a fake. Japan Mint fineness certification is not equivalent to a universal mandatory hallmark on every Japanese jewelry item. Examine all available markings and documentation.
- Assuming the highest metal fineness automatically means the most suitable jewelry. Alloy engineering, construction and intended use matter. Ask what alloy is used and why it was selected.
- Buying for commercial resale under tourist tax-free assumptions. Consumer tax-free shopping rules and commercial import or export transactions are different systems. Verify the rules that apply to the actual purpose of the purchase.
- Ignoring after-sales service. Ring resizing, stone replacement, pearl restringing, polishing and repairs can matter significantly after purchase. Confirm what the seller will provide and where the work is performed.
- Relying on outdated directories. Jewelry businesses can relocate, change trading models or close. Verify current corporate and store information before visiting, ordering or transferring funds.
What Professional Buyers Should Verify Before Ordering
Professional sourcing requires more than comparing unit prices. Before placing an order, identify the legal company, determine whether it is acting as manufacturer, wholesaler, distributor or retailer, and confirm the exact product specification.
- Legal company name and current business identity
- Physical business location where relevant
- Manufacturer, brand owner and seller relationship
- Precious-metal type and stated fineness
- Gemstone identity and treatments where material to the purchase
- Natural or laboratory-grown diamond disclosure where applicable
- Pearl type and supporting documentation for premium products
- Minimum order quantity for B2B transactions
- Production lead time
- Payment currency and payment terms
- Shipping responsibility and insurance
- Import and export documentation
- Return, repair and defect procedures
- Applicable laboratory reports or certificates
Documentation requirements should be proportionate to the transaction. A finished fashion-jewelry purchase, a high-value loose diamond, an Akoya pearl strand and a bulk OEM order do not require identical due diligence.
Japanese Jewelry Industry Questions
Where is Japan's main jewelry manufacturing center?
Kofu and the wider Yamanashi jewelry cluster have a particularly important role in gemstone processing and jewelry manufacturing. The local ecosystem covers multiple stages from planning and materials to polishing, precious-metal processing and distribution.
Where is Tokyo's specialist jewelry district?
Okachimachi in Taito City is widely associated with specialist jewelry trading and services. The area contains businesses dealing with finished jewelry, loose stones, components, precious metals, tools, processing, repair and related activities.
Is Ginza a jewelry manufacturing district?
Ginza is primarily important as a luxury retail and branding location. Manufacturing can take place elsewhere, including specialist production centers outside Tokyo.
Why is Kofu associated with gemstones?
The area's industry developed historically from crystal resources and crystal-processing skills. Those capabilities evolved into a broader jewelry cluster working with gemstones and precious metals from domestic and international supply chains.
Where are Japanese Akoya pearls produced?
Important Akoya pearl-producing areas include coastal parts of Mie, Ehime and Nagasaki prefectures. Cultivation is only one stage; pearls may subsequently pass through sorting, processing, wholesale distribution, jewelry manufacturing and branded retail.
Are all Japanese Akoya pearls Hanadama?
No. Akoya is a pearl type, while Hanadama terminology is associated with specific quality assessment and certification practices. Buyers should inspect the issuing laboratory and the exact criteria stated on the accompanying report rather than treating the words as interchangeable.
Is precious-metal hallmarking compulsory in Japan?
Japan Mint operates a fineness-certification system for precious-metal wares submitted for examination. Its certification mark is therefore valuable evidence when present, but buyers should not assume that every legitimate Japanese jewelry item must carry a Japan Mint hallmark.
What do Pt900 and Pt950 mean?
They are platinum fineness designations. Pt900 indicates 900 parts platinum per 1,000, while Pt950 indicates 950 parts per 1,000. The remaining alloying components and manufacturing process also influence the physical characteristics of the finished jewelry.
Can private consumers shop in Okachimachi?
Yes, many businesses in the wider district have consumer-facing operations. However, individual store policies differ, and consumer prices should not automatically be interpreted as B2B wholesale prices.
Where should a jewelry company look for Japanese OEM production?
Yamanashi, particularly the Kofu jewelry cluster, is an important place to investigate because it combines multiple jewelry-production disciplines. A buyer should still evaluate each manufacturer's capabilities, minimum quantities, technical specialization, quality-control procedures and commercial terms individually.
Which Japanese cities are most relevant to luxury jewelry retail?
Tokyo is central, particularly Ginza, but Osaka, Nagoya, Kyoto, Kobe, Yokohama, Fukuoka and other large regional markets also support luxury jewelry retail. The appropriate city depends on the brand, target customer and geographic market being studied.
What should buyers verify before purchasing expensive jewelry in Japan?
Check the seller, precious-metal fineness, gemstone description, treatment disclosures where relevant, laboratory documentation for stones when appropriate, warranty or repair terms and the conditions governing tax-free purchases or export. For business transactions, add corporate verification, commercial terms, shipping responsibility and customs documentation.
Author's Expert View on the Japanese Jewelry Industry
From an industry research perspective, one pattern is especially clear: Japan's jewelry strength comes from specialization across different parts of the value chain rather than from one dominant city performing every function.
Kofu demonstrates the value of accumulated manufacturing and lapidary expertise. Tokyo combines two contrasting but complementary markets through luxury-oriented Ginza and specialist-trade-oriented Okachimachi. Mie, Ehime and Nagasaki connect jewelry with pearl cultivation, while Kyoto, Kobe, Nagoya, Osaka and other cities contribute their own combinations of design, brands, bridal demand, independent jewelers and regional retail.
This structure also explains why company classification matters. A famous retail brand, a pearl producer, a loose-stone dealer, an OEM factory and a custom atelier all belong to the Japanese jewelry industry, but they solve different problems. Comparing them as though they were direct competitors produces a distorted picture of the market.
The available market evidence therefore supports a network-based view of Japanese jewelry: production, materials, technical skills, wholesale trade, branding and consumer retail interact across several regional centers.
Practical Summary for Buyers, Researchers and Jewelry Businesses
Japan should not be approached as a single jewelry destination. Start by defining the purpose of the research or purchase.
For manufacturing and production capabilities, investigate Kofu and Yamanashi. For luxury retail and major brand flagships, examine Tokyo and other large metropolitan markets. For specialist jewelry trading, materials and technical services, study Okachimachi. For cultured pearls, follow the supply chain into Mie, Ehime and Nagasaki rather than looking only at metropolitan boutiques.
Regional markets also matter. Hiroshima, Fukuoka, Sapporo, Sendai and other large cities serve consumers far beyond Tokyo, while places such as Kyoto, Kobe and Nagoya add distinct brands, craft traditions and business models to the national industry.
Before purchasing or establishing a commercial relationship, verify what the company actually does, who manufactures the product, the stated precious-metal fineness, gemstone or pearl documentation where relevant, payment and delivery conditions, after-sales obligations and the customs or tax rules applicable to the transaction.
That approach provides a more accurate picture of the Japanese jewelry industry than treating every company as a manufacturer, every jewelry district as a wholesale market or every Japanese-branded product as the output of a single vertically integrated factory.