Is CHUK_KAM the same as 足金?

Yes. CHUK_KAM, 足金, 990 GOLD all denote the same material — 99.0% gold. Different markets and eras stamp it differently, but the purity is identical.

How much is CHUK_KAM worth?

Its melt value is the gold spot price × 0.990 × the weight in grams. Buyers then deduct roughly 5–15% for refining and margin, so a quoted buy-back price sits a little below that theoretical figure.

How do I confirm a CHUK_KAM stamp is genuine?

Look at the mark under 10× magnification for crisp, even strikes, cross-check the weight-to-volume ratio against the expected density, scan it with the Jewelry Identifier app, and — when it matters — have an XRF test done by an assay office or gemological lab.

* Gold hallmark

The CHUK_KAM hallmark: meaning, purity & value

Cantonese 'sufficient gold' designation, traditionally ≥99% pure gold. Standard for Hong Kong and Chinese bridal gold jewelry. Regulated under Hong Kong Trade Descriptions Ordinance.

Published May 30, 2026

Quick facts

Metal: Gold
Purity: 99.0%
Fineness: 990/1000
Common regions: Hong Kong, China

Stamps that mean the same thing

This purity may be struck into jewelry as any of: CHUK_KAM / 足金 / 990 GOLD. The mark differs by country and era, but the metal content is identical.

What CHUK_KAM tells you

Cantonese 'sufficient gold' designation, traditionally ≥99% pure gold. Standard for Hong Kong and Chinese bridal gold jewelry. Regulated under Hong Kong Trade Descriptions Ordinance.

How to value it

The melt value of a CHUK_KAM piece is gold spot price × 0.990 × weight (g). A buyer typically deducts 5–15% for assay, refining, and margin, so the cash offer lands just under that figure. Stones and complex settings are usually excluded from the metal weight.

Live calculators: gold karat × weight · item × karat estimates · per-gram hub.

How to check it yourself

Examine the stamp under a 10× loupe — genuine marks are crisp and evenly struck, not doubled or smeared.
Confirm the mark reads CHUK_KAM or an equivalent such as 足金.
Photograph it in the Jewelry Identifier app to read the metal, hallmark, and any gemstones from the image.
For a binding result, have an assay office or gemological lab run an XRF purity test.

Sources

Hong Kong Trade Descriptions Ordinance Cap. 362

* Frequently asked

FAQ

Q. Is CHUK_KAM the same as 足金?: A. Yes. CHUK_KAM, 足金, 990 GOLD all denote the same material — 99.0% gold. Different markets and eras stamp it differently, but the purity is identical.
Q. How much is CHUK_KAM worth?: A. Its melt value is the gold spot price × 0.990 × the weight in grams. Buyers then deduct roughly 5–15% for refining and margin, so a quoted buy-back price sits a little below that theoretical figure.
Q. How do I confirm a CHUK_KAM stamp is genuine?: A. Look at the mark under 10× magnification for crisp, even strikes, cross-check the weight-to-volume ratio against the expected density, scan it with the Jewelry Identifier app, and — when it matters — have an XRF test done by an assay office or gemological lab.

* Try it

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