1 oz Gold Bars

One Ounce of Gold Without the Coin Premium

A 1oz gold bar buys the same troy ounce of metal as a sovereign coin at a lower premium. Bars are refined gold in standardised rectangular form, not legal tender, with no face value; the buyer pays for metal and refiner hallmark rather than a sovereign strike. For investors focused on maximising gold per dollar, that trade is the whole appeal of 1oz gold bars over 1oz gold coins.

The 1oz size occupies a specific niche on the bar weight scale. Smaller bars, from 1g to 20g, carry steep percentage premiums because fabrication costs dwarf the metal value; 1g bars can run 15-25% over spot. Larger bars get cheaper per ounce, with 100g bars at roughly 2-4% and kilo bars at 1-2%, but each step up concentrates more value in a single unit that must be sold all at once. The 1oz bar is widely described as the sweet spot: near-bottom premiums with a unit size that still sells quickly to a broad retail buyer pool.

Most retail 1oz bars are minted rather than cast: cut from rolled gold sheet, polished, and sealed in a tamper-evident assay card carrying the serial number, weight, purity and refiner hallmark. Cast bars, poured into moulds with a rougher finish, are cheaper still but more common at larger weights. Standard purity is 999.9 fine, which clears every tax threshold worldwide; unlike 22ct coins, there is no purity trap with bars.

Tax treatment is bar-friendly on purchase in most places. Investment gold bars at 995+ fineness are VAT-exempt in the UK and EU, GST-exempt in Canada, Australia, New Zealand and Singapore, and entirely untaxed in Hong Kong. The exception that matters is the UK on disposal: bars are never CGT-exempt, while UK legal tender coins like the gold Britannia are. UK investors expecting gains above the GBP 3,000 annual allowance may find the CGT bill on bars outweighs the premium saved at purchase.

The Cheapest Way to Buy an Ounce, Almost

1oz gold bars typically trade at 1-4% over spot for minted bars from branded refiners, with cast bars at 1-3%. Sovereign 1oz coins run roughly 3-8% by comparison, so the bar saves one to several percentage points on the same metal. The saving comes from simpler manufacturing and the absence of legal tender status, sovereign branding and coin-grade anti-counterfeiting work.

The premium curve across bar sizes is steep at the bottom and flat at the top. Tiny bars of 1g to 5g can carry 10-25% premiums, the 1oz bar sits near the bottom of the curve at 1-4%, 100g bars run 2-4%, and 1kg bars reach 0.5-2%. On a USD 100,000 allocation, choosing bars over coins can save USD 2,000-4,000 in premiums. Buyers who want to keep stepping down the premium curve should weigh the liquidity cost: each larger bar narrows the pool of buyers who can take it.

Brand affects price within the 1oz bracket. PAMP Suisse Fortuna bars command a modest premium over generic refiner bars on the strength of brand recognition and the Fortuna design, and similar dynamics apply to other LBMA-accredited names. The premium buys easier resale rather than better gold; all standard retail bars are 999.9 fine.

Spreads complete the picture. Generic gold bars typically see round-trip spreads of 3-5%, tighter than the 4-8% typical of sovereign coins in absolute premium terms, though well-known coins often keep narrower spreads at the retail level because of stronger brand recognition. A sealed assay card matters here: breaking the seal can push a bar back toward re-assay, widening the effective spread. As with all gold products, premiums and spreads widen during volatile or high-demand periods, as seen in 2020 and the 2025 price surge.

Refiners That Matter at the 1oz Size

With bars, the brand on the assay card stands in for the sovereign mint. LBMA accreditation is the dividing line: bars from accredited refiners are accepted globally on hallmark alone, while non-LBMA bars may need assay testing at the seller's expense before a dealer will buy them.

The Swiss refiners dominate the retail 1oz market. The 1oz PAMP Suisse Fortuna is the most recognised single design, and Valcambi 1oz bars trade close behind it. Argor-Heraeus adds kinebar holographic security, while PAMP and Valcambi support VeriScan verification through their packaging. Two government producers blur the bar-coin line: Perth Mint and Royal Canadian Mint bars carry state backing alongside refiner hallmarks, which helps recognition in their home markets. At the institutional end, 400oz LBMA Good Delivery bars set the wholesale standard but are not practical retail products; the 1oz bar is where that refining pedigree meets a tradeable unit size.

Assay Cards, Resale and Storage

1oz bars from LBMA-accredited refiners in sealed assay cards are highly liquid and accepted by dealers worldwide. The unit value is low enough that the retail buyer pool stays broad, which is what separates the 1oz bar from 100g and 1kg bars: those remain liquid through institutional buyers and refiners but find fewer retail takers. Generic or non-LBMA bars sit a tier below, often requiring assay before a dealer will quote.

The assay card is the liquidity instrument as much as the packaging. The tamper-evident seal, serial number and certificate give the buying dealer chain-of-custody assurance, so a sealed bar sells on sight while a loose bar may need re-assaying. Keep the card sealed and store it flat; the cards are fragile and should not stand on edge. Bars generally see slightly wider buy-sell spreads than well-known sovereign coins at retail, because coins carry stronger brand recognition and a standardised appearance, but the gap is modest for the major refiner brands.

Counterfeiting risk works differently for bars than coins. Tungsten's density (19.25 g/cm3) is close enough to gold's (19.32 g/cm3) that a plated tungsten bar can pass weight and dimension checks, and XRF testing only reads the surface 10-50 microns. The risk concentrates in larger bars of 100g and up; for retail 1oz bars bought new from authorised dealers in sealed cards, it is effectively eliminated. Ultrasonic testing is the reliable non-destructive check where doubt exists, since sound travels through gold at 3,240 m/s against tungsten's 5,170 m/s, and Sigma Metalytics verifiers work well at the 1oz size.

Storage is the easiest of any bullion format. Minted bars in cards are flat, thin and stack efficiently; gold neither tarnishes nor corrodes, so no atmospheric precautions are needed. A 1oz bar measures roughly 50 x 29 x 1.6mm, small enough for any safe, and the value density only improves up the scale. Investors planning partial liquidation should note Valcambi CombiBars, which break into smaller segments, though buying the right unit size upfront, often a stack of 1oz bars, is more cost-efficient than dividing later.