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0.5 g Gold Bars
Number of products: 1Half a gram is the smallest bar format in circulation, and it is genuinely rare: of the ten refineries whose gold bars we stock, not one publishes a specification for a standalone 0.5 g bar. The nearest documented format is the Valcambi CombiBar, a scored sheet whose segments snap apart by hand; Valcambi lists a 100 × 0.5 g version but publishes no dimensions for it.
What we list here is the single-bar version, sealed in an assay card. It is the lowest possible entry price for a gold bar and, per gram of metal, the most expensive format on the site.
Why this weight is so uncommon
Half a gram of gold is about 0.026 cm3 of metal. The rolling mill, the press, the serial-number die and the sealing line all cost the same to run on that as on a bar two hundred times heavier, and that fixed cost has nowhere to hide when the metal content is this small.
| Refiner or standard | Dimensions | Form | Packaging |
|---|---|---|---|
| Valcambi CombiBar 100 × 0.5 g | dimensions not published by the producer | minted sheet | sealed card, segments snap apart |
| Single 0.5 g bar | no refiner publishes a specification | minted | sealed assay card |
We would rather leave those cells empty than fill them with figures taken from a reseller. For comparison, the smallest weight with published specifications is the 1 g bar: 15.0 × 8.7 × 0.5 mm at Argor-Heraeus.
What the format is actually for
Three uses account for almost all demand at this weight. As a gift, because it is a real bar with real assay documentation at the smallest possible outlay. As the finest unit of division, when the point is to be able to release a very small amount without breaking anything larger. And as a first purchase, to see what the packaging and paperwork look like before committing to a heavier weight.
It is not, however, an efficient way to accumulate metal. Anyone accumulating gram by gram will pay materially less per gram in the 1 g bar or the 5 g format, and less again above that.
The CombiBar route
Valcambi's CombiBar is the same idea handled differently: one sheet, scored into segments, each segment a valid bar with its own stamp. The 100 × 1 g version measures 74 × 105 × 0.8 mm — the footprint of a DIN A7 card at 0.8 mm thick — and the 50 × 1 g version 74 × 52 × 0.8 mm. Valcambi lists a 100 × 0.5 g version in the same range without publishing its dimensions. In every format you buy the whole sheet in one transaction and divide it later, which brings the premium per gram well below what a hundred separate bars would cost.
What you actually pay
The metal value of half a gram at the current market price, plus a premium that is, in percentage terms, the highest we quote. That is not a markup decision but an arithmetic one — see the section above. The live gold price is on our gold price page.
Questions buyers ask about this weight
How much is a 0.5 g gold bar worth?
Half the gold price per gram, plus the premium. Because the premium is close to fixed per bar rather than per gram, it is a much larger share of the total here than at any heavier weight.
How big is a 0.5 g gold bar?
No refinery publishes a specification for a standalone half-gram bar, so we do not quote one. As a reference point, the 1 g bar is 15.0 × 8.7 × 0.5 mm at Argor-Heraeus; a half-gram bar is smaller again.
Why is the premium so high?
Because the cost of making a bar barely changes with its weight. Half a gram of gold is about 0.026 cm3 of metal, and the same rolling, striking, serialising and sealing still has to be paid for.
Is a CombiBar segment the same as a 0.5 g bar?
Functionally yes — each segment carries its own stamp and is a valid bar. The difference is that you buy the entire sheet at once and separate it afterwards, which lowers the cost per gram.
Will you buy a 0.5 g bar back?
Yes, priced against the current market. Bear in mind that on a bar this small the spread between buying and selling is proportionally wider than on any larger format. See the buyback page.
Other gold bar weights
1 g · 2 g · 2.5 g · 5 g · 10 g · 20 g · 1 oz · 50 g · 100 g · 250 g · 500 g · 1 kg
All weights are listed together on the gold bars page. For coin formats in the same metal, see gold coins.
