Quick answer
The largest risk is not outright counterfeiting but legal deception: terms such as “gold clad,” “100 mills,” and “HGE” describe products with a microscopic gold coating worth a fraction of the asking price. Outright fakes also exist, including tungsten-core bars and replica coins that lack the federal “COPY” marking required by law. Platform buyer protections rarely cover subjective metal-value disputes, and Facebook Marketplace cash deals provide zero recourse once funds change hands.
The Misleading-Wording Trap: What “Gold” Actually Means in a Listing
A search for “gold bar” on any major marketplace returns thousands of results. The large majority are not fraudulent in the criminal sense: sellers are legally permitted to use terms like “gold clad” or “gold layered,” provided those terms are technically accurate. The problem is that accurate and valuable are not the same thing. A bar described as “gold layered, 100 mills” may contain less than a dollar’s worth of gold while listed at $30 or more.
The Federal Trade Commission’s Guides for the Jewelry, Precious Metals, and Pewter Industries (16 CFR Part 23) define specific standards for terms like “gold filled” and “gold electroplate.” Many marketplace listings use wording that falls entirely outside these standards, creating a legal gray zone where nothing in the listing is technically false but the item has almost no precious metal value.
| Term in listing | What it actually means | FTC standard? |
|---|---|---|
| Gold clad | A thin gold layer bonded or coated onto a base metal core | No defined FTC minimum; content can be negligible |
| Gold layered | Multiple thin coatings of gold over base metal | No defined FTC minimum |
| 100 mills | A marketing term for a very thin gold plating; not a recognized precious-metals measure | No FTC or commodity exchange standard; used to sound substantial |
| HGE (Heavy Gold Electroplate) | Electroplated gold finish; “heavy” has no binding legal definition | FTC defines gold electroplate by minimum thickness (16 CFR Part 23); “heavy” adds no regulated threshold |
| Gold filled / GF | Gold layer bonded to base metal, constituting at least 1/20 of total weight | Yes, FTC 16 CFR Part 23: minimum 5% gold by weight |
| Gold plated / GP | Electrodeposited gold layer over base metal at FTC minimum thickness | Yes, FTC 16 CFR Part 23 minimum thickness applies |
| Solid gold / fine gold | Actual gold alloy throughout (10K to 24K per karat stamp) | Yes, must display a karat stamp; counterfeits exist in this category too |
The bottom line from this table: any listing that does not state a karat (10K, 14K, 18K, 22K, or 24K) or a fineness figure (such as .999 or .9999) is almost certainly describing a product with negligible gold content. Before placing any order, use the Goldiew gold value calculator to translate karat and weight into a real melt value so you can compare it against the asking price.
Outright Counterfeits: Tungsten-Core Bars and Fake Sovereign Coins
Beyond misleading wording, a smaller but more serious category of marketplace listings involves genuine counterfeits: items intended to pass as legitimate bullion.
Tungsten-core gold bars
Gold has a density of approximately 19.3 grams per cubic centimeter. Tungsten’s density is approximately 19.25 grams per cubic centimeter, making the two metals nearly indistinguishable by weight alone. Counterfeit bars fabricated from tungsten cores with a genuine gold exterior plating read correctly on a standard scale and may even pass a surface acid test, because the surface layer is real gold.
These bars surface in marketplace listings from overseas sellers, often priced at a slight discount to current spot price (itself a disqualifying signal; see our full breakdown at gold below-spot offers: red flags explained). Reliable detection requires an ultrasound test or an Archimedes displacement measurement for density, neither of which a buyer can perform before a marketplace transaction completes.
Fake sovereign coins and bullion coins
Replica coins closely resembling genuine American Gold Eagles, British Sovereigns, Canadian Maple Leafs, or South African Krugerrands are produced in quantity. Listings may describe these as “commemorative” or “replica,” but many carry no such label at all. Common signals in listings include unusually sharp product photos showing only one face, no mention of a grading service such as PCGS or NGC, and prices well below the known dealer spread over spot.
Genuine sovereign bullion coins have published weight and dimension specifications from their issuing mints. A genuine 1 oz American Gold Eagle, for example, weighs 33.931 grams with a diameter of 32.7 mm per US Mint specifications. A counterfeit that does not match these figures to within tight manufacturing tolerance is not genuine regardless of how the listing reads.
Replica Coins and Federal Law: The Hobby Protection Act
Congress enacted the Hobby Protection Act (15 U.S.C. §§ 2101-2106) in 1973 to address the market for imitation numismatic items. The law requires that any imitation numismatic item (a reproduction of a coin) sold in the United States bear the word “COPY” on its surface in a plain and conspicuous manner.
The Act was strengthened by the Collectible Coin Protection Act of 2014, which gave the FTC updated enforcement authority over online sales of replica numismatic items and modernized the definition of imitation numismatic items to reflect current production methods.
What this means for marketplace buyers:
- A replica coin sold without a “COPY” marking is being sold in violation of federal law, and the seller may be subject to FTC civil enforcement action.
- A coin marked “COPY” has no bullion value and should not be priced as if it does. Any seller charging spot-price rates for a marked replica is deceiving buyers about value.
- A listing that omits the word “COPY” entirely for a reproduction coin is a stronger fraud signal than one that includes it.
- You can file a complaint with the FTC at reportfraud.ftc.gov; the FTC uses these reports to identify patterns and pursue enforcement actions.
The Hobby Protection Act covers imitation numismatic items specifically. It does not govern gold-clad or gold-plated bars sold as novelty items, which fall under the FTC’s broader authority over deceptive trade practices instead.
Platform Buyer Protections: What They Cover and Where They Stop
Each of the three major platforms offers buyer protection programs, but their application to precious metals and bullion is narrower than most buyers assume before their first marketplace metal purchase.
eBay
eBay’s Money Back Guarantee covers items that do not arrive or that differ materially from the listing description. The guarantee is based on listing language, not on an independent assessment of intrinsic metal value. If a seller accurately described a bar as “gold layered, base metal core” and you received exactly that item, the guarantee will typically not support a return claim because the item matched what was described.
eBay’s Authenticity Guarantee program, which involves third-party verification for certain high-value categories, applies to specific product categories; it does not cover raw bullion bars or most coin listings. Check eBay’s current program terms before assuming coverage extends to your purchase.
Amazon
Amazon’s A-to-z Guarantee covers cases where items do not arrive or do not match the listing description. For bullion, the same limitation applies: if the listing accurately described a gold-plated decorative item and you received a gold-plated decorative item, the guarantee does not function as a metal-value assurance. Amazon also restricts listings of investment-grade bullion under its precious metals policy; items that appear in marketplace search results as “gold bars” are frequently novelty or decorative products, not investment bullion, and their listings may technically comply with Amazon’s platform terms.
Facebook Marketplace
Facebook Marketplace offers Purchase Protection on some transactions completed through Facebook Checkout. Cash transactions arranged through Marketplace but completed in person carry no platform buyer protection. Facebook Marketplace is a common venue for urgent, high-pressure gold sales precisely because transactions complete outside any trackable payment system.
Social Media Gold Ads: A Different Category of Risk
Beyond organic marketplace listings, paid advertisements on social platforms promote gold and silver “deals” that originate outside any established marketplace. These ads frequently combine two patterns that FINRA and the FTC have each identified as fraud indicators:
- Below-spot pricing with urgency framing. Ads show a price per ounce that is below the current London Bullion Market Association fixing, combined with language like “limited supply,” “estate liquidation,” or “today only.” Legitimate dealers cannot sell below their acquisition cost; any price below spot is a disqualifying signal, not a bargain opportunity.
- Unverifiable seller identity. The advertiser has no physical address, no business name you can verify with the BBB or your state’s secretary of state, and a payment method that does not permit chargebacks: wire transfer, cryptocurrency, Zelle, or cash app payments.
The FTC’s fraud reporting portal at reportfraud.ftc.gov is the appropriate first stop after a suspected social-media gold scam. For investment fraud (cases where the seller represented the gold as an investment vehicle), the SEC’s complaint portal at sec.gov/tcr is also relevant. FINRA’s Securities Helpline at 1-844-57-HELPS can direct you to the correct reporting channel based on your situation.
Six Steps to Verify Any Marketplace Gold Listing
- Look for a karat or fineness stamp. Any genuine gold item carries a marking: 10K, 14K, 18K, 22K, 24K, or a decimal fineness (.585, .750, .916, .999, .9999). A listing that cannot specify one of these is describing a product with negligible gold content by definition.
- Calculate the implied melt value before ordering. Use the Goldiew gold value calculator to determine what the item is worth at current spot if the stated purity and weight are accurate. If the listing price exceeds that melt value by more than a reasonable dealer premium (typically 3 to 8 percent over spot for common bullion coins and bars from established dealers), the gap requires explanation.
- Check weight and dimensions against published mint specifications. The US Mint, Royal Canadian Mint, and other sovereign mints publish exact weight and diameter figures for all their products. Deviation beyond tight manufacturing tolerance indicates a counterfeit regardless of how the listing describes the coin.
- Evaluate the seller’s feedback on precious metals transactions specifically. Positive feedback on electronics, clothing, or household items does not demonstrate expertise or reliability in bullion. Look for completed sales of the exact product type you are considering, with buyer comments that mention condition verification and prompt shipping of the correct item.
- Require a return policy that covers independent assay results. A legitimate bullion seller permits a professional metallurgical assay as grounds for return. Sellers who refuse this condition or insist on cash-only, no-return terms are signaling elevated risk of counterfeit merchandise.
- Verify dealer credentials before any significant purchase. The Goldiew verified gold dealer directory and coin dealer directory list businesses with physical addresses and documented operating histories. A dealer listed there has passed baseline identity verification that anonymous marketplace sellers have not.
The common thread across all six steps is documentation: legitimate bullion transactions leave a trail of specifications, published pricing, and verifiable business identity. Scam transactions resist every one of these points. For a broader look at the mistakes first-time buyers make across all purchase channels, see first-time gold buyer mistakes: what to avoid.
The Safer Alternative: Vetted Dealer Directories
The core problem with general marketplaces for bullion purchasing is the absence of baseline vetting: anyone can create a seller account and list a “gold bar.” Dedicated precious metals dealers operate under different constraints, including state money-transmitter licensing in many jurisdictions, CFTC registration requirements for futures-linked products, and BBB accreditation commitments that include dispute resolution procedures.
Find Verified Gold and Coin Dealers Near You
The Goldiew gold dealer directory and coin dealer directory list businesses with physical addresses, documented operating histories, and identity verification. Searching by zip code surfaces dealers you can visit in person to inspect products before payment, building an ongoing relationship with a source whose business depends on its local reputation. For buyers who prefer online-only transactions, established online dealers listed in the directories publish live spot pricing and maintain insured shipping and return policies.
If you own a gold dealership or coin dealership and want verified buyers to find your business through this directory, you can claim your free Goldiew business profile to appear in local searches.
Frequently Asked Questions
Is it illegal to sell fake gold on eBay?
Selling items explicitly represented as genuine gold when they are not constitutes fraud under federal law, including the wire fraud statute (18 U.S.C. § 1343) when the transaction occurs electronically. However, selling a “gold clad” or “gold layered” item that the listing accurately describes is not automatically illegal, even if many buyers misunderstand the value. The legal question is whether the listing was designed to deceive a reasonable buyer about metal content. Separately, replica coins sold without the required “COPY” marking under the Hobby Protection Act (15 U.S.C. §§ 2101-2106) violate federal law regardless of other listing language. Report suspected fraud at reportfraud.ftc.gov and to eBay’s trust and safety team.
How can I tell if a gold bar I bought on eBay is real?
Three tests you can arrange independently: (1) Have the bar weighed on a calibrated postal or jewelry scale against the manufacturer’s stated specification; a deviation of more than roughly 0.1 to 0.2 grams on a one-ounce bar is a red flag. (2) Take it to a local coin dealer or jewelry assayer for an XRF (X-ray fluorescence) test, which is non-destructive and gives an immediate purity reading. (3) For suspected tungsten-core bars, an ultrasound test or Archimedes displacement test (measuring water displacement to verify density) can detect a tungsten core that a surface acid test would miss. Most local coin dealers offer basic testing for a modest fee.
What does “100 mills gold” mean?
“100 mills gold” is a marketing term, not a recognized standard from the FTC, the London Bullion Market Association, or any commodity exchange. It appears primarily on gold-plated bars sold as novelty or collectible items at low price points. The product contains only a thin electroplated gold coating over a base metal core (typically brass, copper alloy, or zinc alloy) and has no meaningful bullion value. The FTC has received complaints about these listings and may pursue them under its deceptive practices enforcement authority.
Does eBay’s Money Back Guarantee protect me if I received fake gold?
eBay’s Money Back Guarantee covers items that do not arrive or that differ materially from the listing description. If a seller listed a product as “100% genuine 24K gold bar” and it turns out to be gold-plated base metal, you have a strong case under the “item not as described” grounds. If the listing accurately described a “gold clad” item and you received that, the guarantee becomes less clear because the item technically matched the description. In all cases: open a case within eBay’s resolution window (typically 30 days from delivery), keep all original packaging, and document the discrepancy with photos and, if possible, a professional assay result.
Are “gold bar” listings on Amazon safe?
Amazon restricts investment-grade bullion listings under its precious metals policy, but search results for “gold bar” frequently surface decorative or novelty items that resemble bullion but are not. Amazon’s A-to-z Guarantee applies on the same “item not as described” basis as eBay’s program: it does not guarantee the intrinsic metal value of items accurately described as decorative or gold-plated. For investment-grade bullion, the LBMA accredited-dealer list and vetted dealer directories are more reliable starting points than marketplace search.
What should I do if I was scammed buying gold on Facebook Marketplace?
Act on three fronts simultaneously: (1) Report the listing and the seller account to Facebook through the platform’s in-app reporting function, which can prevent the same account from targeting further buyers. (2) If you paid by credit card or debit card, contact your card issuer immediately to initiate a dispute; card disputes have time limits, typically 60 to 120 days from the transaction date depending on your card network. (3) File a report with the FTC at reportfraud.ftc.gov and with the Internet Crime Complaint Center (IC3) at ic3.gov. Cash transactions have no payment-system dispute path, but a police report may be necessary for any insurance claim if the amount is significant.
Is “gold filled” jewelry worth buying as a precious metals investment?
Gold filled items contain at least 5% gold by weight (1/20 of total weight per FTC 16 CFR Part 23), making them meaningfully more gold-rich than electroplated items. However, they are still primarily base metal. A gold filled bracelet may contain a fraction of a gram of actual gold, not enough to have meaningful bullion value as an investment. Gold filled is a legitimate description for durable decorative jewelry with a substantial gold layer, but buyers considering any item as a metal investment should calculate the actual gold content in grams at current spot pricing before purchasing.
Sources
- Federal Trade Commission, “FTC’s Guides for the Jewelry, Precious Metals, and Pewter Industries” (16 CFR Part 23)
- US Code Title 15, Chapter 48: Hobby Protection Act (15 U.S.C. §§ 2101-2106)
- FINRA Investor Alert: Precious Metals Fraud
- SEC Investor Alert: Gold, Silver, and Other Precious Metals
- Federal Trade Commission: ReportFraud.ftc.gov
- Internet Crime Complaint Center (IC3), Federal Bureau of Investigation
- 18 U.S.C. § 1343, Federal Wire Fraud Statute
- US Mint: American Gold Eagle Specifications