Top 5 Gold Buyback Scams in Hong Kong: Gold Loss, Tampered Scales, Deduction, Substitution, and | Gu Jin Jian Bao

The higher the gold price, the more"tricks"appear in the gold buyback market. The following five scams are the most common in Hong Kong: inflated melting loss, rigged scales, price deduction after submission, item swapping, and false purity claims. Each has specific operating methods and prevention techniques. After reading this, you can avoid at least 90% of the traps when selling gold.

Trap One: Melting Loss – Inflating "Melting Loss" to Pocket Thousands

Method

"Melting loss" originally referred to the natural loss (approx. 1–2%) during gold smelting and refining in ancient times. However, with modern refining techniques, the loss is now below 0.5%, and legitimate markets no longer even mention "melting loss." Some gold shops and pawnshops take advantage of customers' ignorance, still deducting 3–5%, which effectively becomes pure profit.

Case: A Gold Shop in Causeway Bay

• Customer Mrs. W: 30g 9999 pure gold bangle
• International gold price on the day: HKD 2,750/gram
• Theoretical value: HKD 82,500
• Gold shop deducts 4% for melting loss (HKD 3,300) + 1.5% commission (HKD 1,237)
• Actual received: HKD 77,963 (91.4% of theoretical value)
• Professional recycler could receive: HKD 80,850 (98.0% of theoretical value)
• Difference for a single bangle: HKD 2,887

Identification Methods

• Demand a clear breakdown of every deduction (melting loss, commission, handling fees) on the spot.
• Request written evidence for melting loss deductions – legitimate businesses will have it; those making arbitrary charges won't.
• Be alert if total deductions exceed 5%; if they exceed 8%, it's basically overcharging.
• Choose channels that explicitly promise "no melting loss, no commission, no handling fees."

Trap Two: Rigged Scales – Tampering with Electronic Scales

Method

Merchants use modified electronic scales that automatically deduct 5–15% of the weight when weighing. The displayed number is lighter than the actual weight, leading customers to believe it "really isn't that heavy," and losing thousands of Hong Kong dollars.

Case: A Pawnshop in Mong Kok

• Customer Mr. L: 1 gold bar, weighed 31.2g on a home electronic scale.
• Pawnshop scale displayed: 28.5g (2.7g less)
• International gold price: HKD 2,800/gram
• Should have received: HKD 87,360
• Pawnshop actual received: HKD 79,800
• Difference: HKD 7,560

Mr. L later compared with his home scale and found the pawnshop scale was significantly lower. However, during a verbal dispute, the pawnshop refused to compensate, claiming the "scale was calibrated."

Identification Methods

• Before selling, weigh it yourself with a home electronic scale (0.1g accuracy, available online for under HKD 200).
• Stand close when the merchant weighs it and ask for the display to face you.
• Request to see the merchant's scale calibration certificate (legal businesses require annual inspection).
• If the weighing result differs by more than 0.5g from other merchants, raise it immediately.

Trap Three: Price Deduction – Changing the Price After Item Submission

Method

Merchants first quote a high price to entice customers to submit their items. After the customer signs the receipt, they lower the price, citing reasons like "re-testing found impurities" or "cannot confirm pure gold." By this point, the customer has already submitted the item, making it difficult to retrieve it on the spot.

Case: A Jewelry Store in Sham Shui Po

• Customer Mrs. C: 5 gold ornaments, total weight 45g.
• Sales assistant's initial quote: HKD 120,000
• After the customer agreed to submit, the assistant claimed "further purity testing is needed."
• 30 minutes later, the receipt showed: HKD 95,000
• Assistant's explanation: "8K impurities were detected, so a deduction is applied."
• The customer questioned it but lacked on-site records and ultimately accepted.
• Difference: HKD 25,000

Identification Methods

• Choose a merchant with an XRF non-destructive testing machine and demand purity testing in your presence, on the spot.
• Sign the receipt immediately after testing; do not allow the merchant "intermediate re-testing" time.
• All quotes should be in writing or screenshot form, not just verbal.
• If a price deduction is requested mid-transaction, immediately retrieve your items and do not proceed with the transaction.

Trap Four: Sample Swapping – The "Purity Reduction" Trick

Method

Customers submit multiple items at once, and the merchant inspects them one by one. During inspection, items that are pure gold are falsely labeled as K gold (e.g., 14K), and then a "low purity" result is shown to the customer. After the customer accepts, the merchant keeps the difference in value.

Case: A Gold Shop in Tsim Sha Tsui

• Customer Mr. K: 8 gold ornaments, total weight 60g.
• The sales assistant inspected each item individually, but asked the customer to wait in an isolation room during the inspection.
• 10 minutes later, the results were: 5 items pure gold, 3 items 14K.
• Mr. K remembered all items were pure gold before, but lacked on-site records.
• The 3 "purity-reduced" items totaled 22g, resulting in a loss of approximately HKD 22,000 when calculated as 14K.

Identification Methods

• The entire inspection process must be within your line of sight; do not be "asked to wait in an isolation room."
• Choose merchants with transparent inspection counters and open workstations.
• Before selling, test with a magnet yourself – pure gold is not attracted by magnets; if it sticks, it's not pure gold.
• For high-purity gold jewelry with clear hallmarks, you can pre-test with a touchstone using an acid test.
• Sell in batches to avoid submitting multiple items at once and losing bargaining power.

Trap Five: False Purity Claims – The Old "Fake Hallmark" Trick

Method

Merchants use various excuses to claim high-purity gold jewelry is low-purity, such as: "This is plated," "Impurities with K-carats were detected," "This is new-process 18K," or "We only accept pure gold, not this item" – the goal is always to lower the quoted price.

Case: A Gold Shop in To Kwa Wan

• Customer Auntie P: 1 gold medal inherited from her grandmother, weighing 25g.
• The gold medal had a clear hallmark: "999" (pure gold).
• Gold shop assistant: "This hallmark is fake; I tested it and it's only 18K."
• Quoted price for 18K: HKD 33,000
• Should have received for pure gold: approx. HKD 66,000
• Potential difference: HKD 33,000

Auntie P, suspicious, took it to another professional Buyback merchant for re-testing, which confirmed it was 9999 pure gold.

Identification Methods

• Before selling, go to 2–3 merchants for purity testing and compare the results.
• Demand an XRF non-destructive gold tester and ask for the specific fineness values (999, 916, 750, etc.) to be read out on the spot.
• Stand next to the instrument and watch the readings; don't just rely on the assistant's verbal claims.
• For items with clear hallmarks, if the merchant insists on "purity reduction," they must provide a concrete test report, not just verbal assertions.

For distinguishing plated gold, K gold, and pure gold, you can refer to the Guide to Distinguishing Plated Gold from Real Gold, which includes home tools and testing methods.

5 General Anti-Scam Tips

1. Choose Reputable Recyclers

Legitimate recyclers have the following characteristics: a fixed business location, verifiable years of operation, clear written fee standards, and public customer reviews. Mobile operations, those without fixed premises, or those who only arrange street-side transactions via WhatsApp, are often temporary operations looking to profit quickly from high market prices.

2. Look for XRF Non-Destructive Testing

XRF (X-ray fluorescence spectroscopy) is the standard tool for modern professional gold testing:

• Accurately displays gold content, precise to 0.1%.
• Non-destructive testing; no scraping or melting required.
• Results in 30 seconds, visible on-site.

3. Bring Your Own Tools

• 0.1g accuracy electronic scale (under HKD 200)
• Magnet (pure gold is not attracted)
• 10x magnifying glass (for viewing hallmarks and details)
• Home touchstone kit (simple acid test)

4. Sell in Batches, Compare Multiple Merchants

Before selling a large quantity of old gold, test the waters with 1–2 items. Get quotes from 2–3 merchants for the same item, compare the actual received percentage, test results, and attitude, then decide which merchant to use for the remaining items.

5. Document Everything

• Clear photos of the front and back of all items, and close-ups of hallmarks.
• Home scale weighing results.
• Merchant's quote (written or screenshot).
• Inspection process (record video within the merchant's permitted range).

For more detailed information, you can refer to Common Gold Buyback Traps in Hong Kong, and 2025 Commission Trap Record.

Safe Selling Process for Old Gold at Home

1. Inventory all gold jewelry, categorize by hallmark (999, 916, 750, 585, etc.).
2. Weigh each item with a home electronic scale and record the weight.
3. Take clear photos of the front and back, and close-ups of hallmarks.
4. WhatsApp a professional recycler for an on-site visit or shop appointment.
5. On-site XRF non-destructive gold testing + electronic scale weighing, with immediate calculation based on the international gold price of the day.
6. Transparent quote, instant cash or FPS payment upon signing.
7. The entire process can be video-recorded (to protect both parties' rights).

For large transactions (single seller ≥ HKD 120,000), according to Hong Kong Customs regulations, payment must be made via FPS or bank transfer, not entirely in cash. This is a compliance measure and actually safer for the seller. For the complete process, you can refer to Sham Shui Po Transparent Gold Buyback Process Demonstration, or Tsuen Wan Gold Buyback On-site Process.

One-Sentence Conclusion on When to Sell Gold

The international gold price in 2026 is still in a historically high range, but as the market heats up, so do the traps. By understanding the 5 scam methods and 5 general prevention tips above, you can largely avoid losing thousands to tens of thousands of Hong Kong dollars from a 30g pure gold item. For a more comprehensive analysis of when to sell gold, you can refer to the Guide to Selling Gold.

• WhatsApp: 98342057
• WeChat: john19998
• Services: Free home visits across Hong Kong, Kowloon, and the New Territories; XRF non-destructive gold testing; instant cash or FPS payment.

For the actual received price range of more old gold ornaments and goldware, please see the Bought back Goldware series.