Gold Bar Denominations
Also: bar size, bar weight, denomination weight
The denomination of a gold bar describes its standardised weight and largely determines the premium, liquidity and suitability for various investment strategies.
The gold bar denomination determines the weight format in which a gold bar is produced and traded. It is not merely a product feature but decides the premium, resaleability and tax treatment. Anyone buying investment gold should know the common formats and their respective advantages and disadvantages.
Overview of Common Formats
| Weight | Fine weight (approx.) | Typical premium* | Target group |
|---|---|---|---|
| 0.1 g | 0.10 g | 30–60 % | Gift, first investment |
| 0.5 g | 0.50 g | 15–30 % | Small investor |
| 1 g | 1.00 g | 8–18 % | Small investor |
| 5 g | 5.00 g | 4–10 % | Retail investor |
| 10 g | 10.00 g | 3–7 % | Retail investor |
| 1 oz (31.1035 g) | 31.10 g | 2–5 % | Standard format |
| 50 g | 50.00 g | 2–4 % | Retail investor |
| 100 g | 100.00 g | 1.5–3 % | Retail investor |
| 250 g | 250.00 g | 1–2.5 % | Investor / commercial |
| 500 g | 500.00 g | 0.8–2 % | Investor / commercial |
| 1 kg | 1,000.00 g | 0.5–1.5 % | Institutional |
| 12.5 kg (400 oz) | 12,441 g | < 0.5 % | Central banks / LBMA |
*Premium over the spot price is indicative and varies by dealer and market conditions.
Weight Units and Conversion
Gold bars are stated in two unit systems:
- Grams / kilograms – predominant in Europe and Asia (e.g. 1 g, 10 g, 100 g, 1 kg)
- Troy ounces (troy oz) – internationally dominant, especially in the English-speaking world (1 oz = 31.1035 g)
You can determine the spot price in euros per gram at any time with the Unit Converter. You will find the current gold price on the gold price page.
Material value = Weight (g) × Fineness (‰) ÷ 1000 × Gold price (€/g)
For a quick calculation, use the Melt Value Calculator.
Why the Premium Falls as Size Increases
The premium (agio) over the spot price is considerably lower for larger bars, because:
- Fixed costs (stamping, packaging, certificate, assay card) are spread over more gold weight.
- Refinery and dealer negotiate large quantities at more favourable manufacturing terms.
- Liquidity of large standard formats (100 g, 1 kg) is higher – the market is deeper.
A 1 g bar can therefore cost 15 % premium, while a 1 kg bar is only 1–1.5 % above spot. On selling, the reverse situation arises: small formats often achieve proportionally less, because dealers factor in higher buying discounts. Estimate the achievable price with the Buying Price Calculator.
Tax Aspects (Not Tax or Investment Advice)
Investment gold is exempt from VAT under the EU VAT Directive 2006/112/EC, as implemented in Malta – regardless of denomination, provided the bar's fineness is at least 995 ‰. Standard trade bars reach 999.9 ‰ and meet this requirement comfortably. As for gains, Malta levies no capital gains tax on the private disposal of movable assets such as precious metals; Maltese capital gains tax applies only to specific assets such as immovable property, securities and business interests. For tax questions, consult a tax adviser.
Minted vs. Cast Bar
The denomination also influences the manufacturing form:
- Cast bars: typically from 100 g upwards, rough structure, lower premium.
- Minted bars: finer surface, more uniform dimensions, preferred in small denominations (1 g – 100 g), often supplied in a certified bar (blister) with an authenticity certificate.
In Brief
The larger the denomination, the cheaper the premium and the better the liquidity – the smaller, the more flexible the investment and the higher the relative costs. For most retail investors, 1 oz and 100 g bars offer the best balance of flexibility and cost efficiency.