Public Reference

Industry Primers

Bottom-up NAICS industry primers written for both public-market and private investors. Leaf industries are researched from the ground up; every group, subsector, and sector above them reads as a contrast across the industries beneath it.

2122 industries · 24 sectors · NAICS 2022

Researched with AI assistance from official U.S. statistics and independent sources, with citations on every page. Figures are not individually verified against pinned evidence — primers marked Evidence-verified are. Industry research, not investment advice. Methodology.

IndustryNAICS 45831

Jewelry Retailers (United States) — NAICS 45831

An investor's primer for both public-market and private investors. Core figures are U.S. federal statistics unless noted; company and market data are cited inline. This is a short "rollup" page: NAICS 45831 is a single-child industry, so the full detail lives in the child primer for 458310.

1. Overview

Jewelry retailing is the business of selling new rings, necklaces, watches, clocks, and sterling or plated silverware to consumers — through stores, showrooms, outlets, and websites, usually with repair or customization alongside [3]. It is a discretionary, big-ticket, gift-and-celebration industry: emotionally durable (people keep getting married and celebrating) but financially cyclical (they trade down or delay when money is tight). In dollars it is large; in ownership it is extremely fragmented, dominated by thousands of small, mostly family-owned stores.

At this level of the taxonomy there is essentially nothing new to say beyond the child industry itself, because NAICS 45831 contains exactly one child — 458310 — and is identical to it. This page gives the level's own federal figures and then points you to the 458310 primer for the full treatment.

2. What's inside — and why this level equals its one child

The North American Industry Classification System (NAICS) is the federal scheme for grouping businesses by activity, organized as a hierarchy that gets more specific as codes get longer. The five-digit NAICS industry 45831 (Jewelry Retailers) sits one rung above the six-digit national industry 458310 (Jewelry Retailers) — and because Jewelry Retailers is not subdivided any further, the two codes cover exactly the same establishments. This is a pass-through level: 45831 has one and only one child, 458310, so every firm, dollar, and store counted at 45831 is the same one counted at 458310 [2][3].

That means the scope, exclusions, and structure are inherited wholesale from the child. In brief, 458310 covers stores (and their e-commerce arms) that primarily sell new jewelry (except costume jewelry), new sterling and plated silverware, and new watches and clocks, and it excludes costume-jewelry sellers (458110), used/antique dealers (459510), repair-only shops (811490), and jewelry manufacturing (339910) [3]. The code was renumbered from the older 448310 (Jewelry Stores) in the 2022 NAICS revision [3]. For the ownership tiers — national chains, independents, online-first sellers, and luxury maisons — see §2 of the 458310 primer.

3. How big it is (this level's rollup figures)

Because 45831 equals 458310, the rollup figures are the child's figures. Our ground-truth federal stats for the 45831 level cover receipts, firm count, and market concentration; they do not include establishment, employment, or payroll counts, so those rows below are drawn from the child-level County Business Patterns file and labeled accordingly.

Metric Value Source
Receipts (sales) $48.306 billion Economic Census 2022 [2]
Firms (companies) 15,556 Economic Census 2022 [2]
Top-4-firm revenue share (CR4) 26.0% Economic Census 2022 [2]
Top-8 share (CR8) 31.4% Economic Census 2022 [2]
Top-20 share (CR20) 38.1% Economic Census 2022 [2]
Top-50 share (CR50) 45.9% Economic Census 2022 [2]
Herfindahl-Hirschman Index (HHI) Suppressed (no published value) Economic Census 2022 [2]
Establishments (locations, employers) 19,897 County Business Patterns 2023, via 458310 [1]
Paid employees 106,903 County Business Patterns 2023, via 458310 [1]
Annual payroll $5.479 billion County Business Patterns 2023, via 458310 [1]

Receipts, firm count, and the concentration ratios (CR4/CR8/CR20/CR50) come directly from our 45831 ground-truth stats; the HHI is suppressed in the federal data, so no numerical HHI value can be stated [2].

Scope caveat (both directions). These figures cover establishments and firms with paid employees; one-person artisan sellers and other nonemployer operations sit largely outside them [1][2]. More important, the $48.3 billion counts specialty jewelry retailers only — it understates total U.S. consumer jewelry spending, because mass merchants, warehouse clubs, e-commerce generalists, and department stores sell large volumes of jewelry under other NAICS codes. All-channel market estimates run higher — roughly $63–78 billion, with Signet's own read of the broader U.S. jewelry-and-watch market at about $63 billion in 2025 [5][11][12]. That said, because jewelry retail is store-based, it is not badly undercounted by tiny or informal operators the way some trades are.

4. Where value concentrates across the children

With only one child, there is no cross-child allocation to make — all of the level's value sits in 458310. Within that single industry, value is heavily skewed: even the 50 largest firms control under half of specialty-store revenue (CR50 of 45.9%), and the single largest player, Signet Jewelers (Kay, Zales, Jared), holds under 10% of the broader U.S. jewelry-and-watch market [2][5]. The rest is a long tail of independent, mostly family-owned stores. For the full investable universe — public names, private owner-operators, and where they fit — see §4 of the 458310 primer.

5. How the money works

The economics are those of a specialty big-ticket retailer, not a utility, REIT, or miner: revenue = units sold × selling price, with fat merchandise gross margins offset by heavy store labor, rent, marketing, and promotion, leaving thin operating margins. The distinctive levers are gross margin, inventory turns, the average ticket, and consumer credit — expensive, slow-moving diamond-and-gold inventory is the core balance-sheet risk, and financing large discretionary purchases is a key demand lever. 2025 was a "price up, units down" year: dollar sales rose about 5.6% even as the number of pieces sold fell, as higher gold prices lifted average tickets [14][15]. Full detail, with Signet and Brilliant Earth benchmarks, is in §5 of the 458310 primer.

6. Demand drivers

Demand tracks weddings and engagements (the biggest swing), gold prices (a double-edged lever on both cost and store-of-value appeal), the mainstreaming of lab-grown diamonds (more units, lower ticket), income and consumer confidence, growing self-purchase and omnichannel shopping, and pronounced seasonality — roughly 35%–40% of a large chain's sales land in the holiday-and-Valentine's window [5][15][16]. See §6 of the 458310 primer.

7. Regulation

Jewelry retailing is lightly licensed but governed by several truth-in-advertising, product-safety, sourcing, and financial rules: the Federal Trade Commission's Jewelry Guides (16 CFR Part 23) on how stones and metals are described [17]; Consumer Product Safety Commission rules on children's jewelry [18]; anti-money-laundering (AML) obligations for larger dealers under the Bank Secrecy Act, administered by the Financial Crimes Enforcement Network (FinCEN) [19]; and import, customs, and conflict-sourcing rules including the Kimberley Process for rough diamonds and, since 2024, G7 restrictions on Russian-origin diamonds [20]. New 2025–2026 import tariffs are a live cost pressure [15]. Full detail is in §7 of the 458310 primer.

8. Consolidation

The defining feature is fragmentation — the top 50 firms hold under half of specialty revenue [2]. Three dynamics are reshaping the field: the market is splitting into "true luxury" and "accessible," squeezing the middle; online disruption has been partly absorbed (Signet bought Blue Nile and James Allen); and consolidation and rationalization continue via acquisitions, private-equity roll-ups, and store-portfolio pruning [5][8][21]. See §8 of the 458310 primer.

9. Risks

The main risks are cyclicality (discretionary big-ticket spending falls fast in downturns), gold-price volatility, lab-grown substitution eroding the average ticket, secular bridal softness, mall exposure, inventory and shrink risk, tariffs and supply-chain disruption, credit sensitivity to interest rates, and — for private targets — owner dependence and record opacity [5][6][15][16]. See §9 of the 458310 primer.

10. How to invest and the outlook

Public routes. For a direct, liquid U.S. bet on jewelry retailing, Signet Jewelers (SIG) is effectively the only large pure play, with Brilliant Earth (BRLT) as a small-cap, online-first, lab-grown-tilted alternative [5][9]. Pandora (PNDORA), Movado (MOV), and Watches of Switzerland (WOSG) give more specialized brand or watch exposure; foreign-listed LVMH (Tiffany, Bulgari) and Richemont (Cartier, Van Cleef) offer diversified luxury where jewelry is a large, growing segment [19][18]. There is no dedicated U.S. jewelry-retail exchange-traded fund (ETF); broad consumer-discretionary or retail funds give only diluted exposure. (Tickers and valuations should be checked at the time of purchase.)

Private routes. Because the industry is mostly private, the widest opportunity set is off-market: buying or building an independent store, backing a regional chain, or joining private-equity roll-ups — underwriting normalized owner earnings and diligencing inventory aging, supplier terms, store-level EBITDA, repair economics, shrink history, and succession.

Outlook (forward-looking judgment). The setup into 2026 hinges on whether engagement volumes keep recovering, how elevated gold prices and new tariffs balance against affordability, how far lab-grown diamonds trade volume growth against ticket compression, and whether Signet's turnaround proves durable [6][8][5]. With overall consumer-spending growth expected to slow, the likely pattern is selective, value-conscious buying, rewarding operators who nail merchandising, inventory discipline, and destination/off-mall formats. These are judgments about direction, not guarantees.

For everything else — the full investable universe, detailed unit economics, the complete regulatory map, and the consolidation and risk analysis — read the child primer for NAICS 458310, which this level mirrors exactly.


Sources

  1. U.S. Census Bureau, County Business Patterns 2023 — establishments, employment, and payroll for NAICS 458310. https://data.census.gov/table/CBP2023.CB2300CBP
  2. U.S. Census Bureau, 2022 Economic Census — receipts, firm count, and concentration ratios (CR4/CR8/CR20/CR50), NAICS 458310/45831 (EC2200SIZECONCEN). https://api.census.gov/data/2022/ecnsize/groups/EC2200SIZECONCEN.html
  3. U.S. Census Bureau, 2022 NAICS Definition: 458310 Jewelry Retailers (definition, exclusions, prior code 448310). https://www.census.gov/naics/?details=458310&input=458310&year=2022
  4. Signet Jewelers Ltd., Form 10-K for Fiscal Year Ended January 31, 2026, U.S. SEC, 2026. https://www.sec.gov/Archives/edgar/data/832988/000083298826000055/sig-20260131.htm
  5. Signet Jewelers Ltd., Signet Jewelers Reports Fourth Quarter and Full Year Fiscal 2026 Results, Businesswire, 2026. https://www.businesswire.com/news/home/20260319440349/en/Signet-Jewelers-Reports-Fourth-Quarter-and-Full-Year-Fiscal-2026-Results
  6. TheStreet, Huge Jewelry Retailer Signet Closing ~100 Stores, Folding Brands, 2025. https://www.thestreet.com/retail/huge-jewelry-retailer-signet-closing-100-stores-folding-two-brands
  7. Brilliant Earth Group, Inc., Form 10-K for Fiscal Year Ended December 31, 2025, U.S. SEC, 2026. https://www.sec.gov/Archives/edgar/data/1866757/000162828026018794/brlt-20251231.htm
  8. Grand View Research, U.S. Jewelry Market Size and Share Report, 2025. https://www.grandviewresearch.com/industry-analysis/us-jewelry-market-report
  9. Arizton, U.S. Jewelry Market Size, Trends and Forecast 2025–2030, 2025. https://www.arizton.com/market-reports/us-jewelry-market/market-size
  10. Tenoris / De Beers Group, The US Jewelry Market in 2025: 5.6% Sales Growth, 2026. https://www.tenoris.bi/the-us-jewelry-market-in-2025-with-5-6-sales-growth/
  11. National Jeweler, 2025 Was a "Price Up, Units Down" Year — What That Signals for 2026, 2026. https://nationaljeweler.com/articles/14601-2025-was-a-price-up-units-down-year-here-s-what-that-signals-for-2026
  12. Gem Breakfast, Rising Gold Prices: What It Means for Engagement Rings and Fine Jewelry, 2026. https://gembreakfast.com/blogs/news/rising-gold-prices-2026-what-it-means-for-engagement-rings-and-fine-jewelry
  13. U.S. Federal Trade Commission, Jewelry Guides (16 CFR Part 23; final revisions approved 2018). https://www.ftc.gov/news-events/news/press-releases/2018/07/ftc-approves-final-revisions-jewelry-guides
  14. U.S. Consumer Product Safety Commission, Jewelry FAQ. https://www.cpsc.gov/FAQ/Jewelry
  15. Financial Crimes Enforcement Network, Guidance for Dealers, Including Certain Retailers, of Precious Metals, Precious Stones, or Jewels. https://www.fincen.gov/resources/statutes-regulations/guidance/guidance-dealers-including-certain-retailers-precious
  16. U.S. Customs and Border Protection, What Are the Requirements for Importing Diamonds, Jewelry, and Other Gemstones?, 2025. https://www.help.cbp.gov/s/article/Article1137?language=en_US
  17. Forbes (Pamela Danziger), Richemont Rises and Signet Falls as Jewelry Market Splinters Between True and Accessible Luxury, 2025. https://www.forbes.com/sites/pamdanziger/2025/01/17/richemont-rises-and-signet-falls-as-jewelry-market-splinters-between-true-and-accessible-luxury/
  18. Richemont, FY25 Annual Report and Accounts, 2025. https://www.richemont.com/news-media/press-releases-news/fy25-annual-report-and-accounts/
  19. LVMH, Watches & Jewelry (Tiffany & Co., Bulgari), 2026. https://www.lvmh.com/static/letter-to-shareholders-january-2026/watches-and-jewelry.html
  20. JCK Online, Looking Back on Jewelry Retail in 2025, and Ahead for 2026, 2026. https://www.jckonline.com/article-long/jewelry-retail-in-2025-and-2026/
  21. Forbes (Pamela Danziger), Lab-Grown Diamond Jewelry Lifts Kay, Zales and Jared Sales by 6%, 2025. https://www.forbes.com/sites/pamdanziger/2025/12/10/lab-grown-diamond-jewelry-lifts-kay-zales-and-jared-sales-by-6/