coin guide

The Best Silver Bars to Buy

The best silver bars to buy are bars you can test against a specification the maker publishes: .999 fine or better, in a size and format you can store and later sell in the amounts you want, with the price to sell visible before you pay. Brand matters less than those checks, and the premium per troy ounce generally falls as silver bars get larger.

Five Checks That Define the Best Silver Bar

Brand rankings skip whether you can confirm a bar is what it says and what it fetches when you sell. Five checks cover both.

• A published specification. The Anti-Counterfeiting Educational Foundation notes that makers publish weight, composition and size on their websites, and a genuine bar should match the stated weight on a precise digital scale.
• Fineness of .999 or higher. London's wholesale market sets a minimum of 999.0 parts per thousand for silver.
• A format that suits your plan. Thin minted bars are easier to test, and cast bars usually carry a lower premium.
• Features a later buyer can check. A serial number, tamper-evident packaging or a maker's security mark.
• A price to sell that you can see. The CFTC's advisory for metals buyers says sellers price metal above spot and buy it back below, and each sets its own gap.

Silver Bar Brands Compared on Published Specifications

We checked each figure on the maker's page for that bar in October 2026, and each row links to it. "Not stated" means the page doesn't give the detail, which isn't a finding about the bar.

The Meaning of .999, .9999 and LBMA on a Silver Bar

The U.S. Geological Survey describes commercial silver bullion as most commonly 99.90% pure, with 99.95% and 99.99% grades also made. The Perth Mint, The Royal Mint and the Royal Canadian Mint publish .9999 for the bars in the table, and Valcambi publishes .999.

The gap is smaller than the extra digit suggests. Subtract .999 from .9999 and .0009 is left, which is 0.09% of the bar. On a 10 oz bar that's 0.009 troy ounces, or about 0.28 g at 31.1035 g to the troy ounce. Bars are priced on their stated troy ounces, so the fourth nine is a maker's specification, not a meaningful amount of extra silver.

"LBMA" on a small bar's listing describes the refiner, not the bar. The London Bullion Market Association's Good Delivery Lists cover only the wholesale bar of approximately 1,000 troy ounces, and the LBMA says no other product from an accredited refiner falls within them. Asahi Refining describes itself as an LBMA Good Delivery refiner, which tells you its large bars met London's standards. The 10 oz bar among Asahi silver bars isn't itself a Good Delivery bar.

Cast and Minted Bars and Their Premiums

A cast bar is molten silver cooled in a mold, which The Perth Mint says gives it a "textured, rustic finish". A minted bar is cut from rolled sheet and stamped with a design, so it looks sharper and is commonly supplied in an assay card or blister pack. The Royal Mint's glossary says cast bars usually carry the lower premium. A premium is the amount charged over spot to cover minting, distribution and the seller's margin.

Shape follows method. Asahi's minted 10 oz bar is a slab 90 mm long and 7.4 mm thick. The Perth Mint's cast 10 oz bar is a block with maximums of 63 mm long and 16 mm thick, more than twice the thickness, and The Perth Mint says its cast bars vary in color tone, surface texture and shape.

Size and Premium per Troy Ounce

The Royal Mint explains that larger products are generally easier to produce and cheaper per ounce than smaller ones, so the premium per troy ounce tends to fall from a 1 oz bar to a 100 oz bar. That's a tendency, not a rule. Each seller's margin is part of the premium, so we don't rank makers by it.

To compare 1 oz silver bars, 10 oz silver bars and 100 oz silver bars on equal terms, divide each total price, shipping included, by the troy ounces of silver. A kilo bar needs one correction first: a kilogram is 32.15 troy ounces, not 32, so a kilo bar holds 2.15 troy ounces more than three 10 oz bars. Our guide to silver bar sizes takes each size in turn.

Silver Bars That Are Easy to Verify, Store and Resell

Verifying a Bar by Thickness and Maker Features

An electronic verifier sends a signal under a bar's surface to look for plating and inserts, and it can read through a plastic holder. Depth is the limit. One professional unit reads through samples up to 12.50 mm thick with its onboard sensors and needs an external bridge for samples up to 45 mm. Two 10 oz bars, the Royal Canadian Mint's at 7.1 mm and Asahi's at 7.4 mm, can be read right through. A Perth Mint cast 10 oz bar at up to 16 mm can't without the bridge, and neither can a kilo bar or 100 oz bar at 22 mm.

Serial numbers aren't universal. Valcambi gives its 1 oz minted bars 2 letters and 6 numbers and lists its 100 oz cast bar with no numbering, while the 10 oz bar among Royal Canadian Mint silver bars has a distinct serial number on each bar. Check the maker's page for whether a bar should carry one. A number that's present proves nothing alone, because it can be copied with the rest of the design.

Packaging has the same limit. Coin World reported in 2016 on counterfeit bullion sealed in counterfeit grading holders. Some makers add a mark that needs their own tool to read: Sunshine Mint silver carries Mint Mark SI, micro-engraving visible only through the maker's decoding lens.

Storing Bars in Maker Packaging

Makers pack bars in fixed units. The Perth Mint sells its Kangaroo 1 oz bars in tamper-evident tubes of 20 and its kilo bars 10 to a monster box, the mint's bulk carton.

Large bars save less room than you'd expect. One hundred Valcambi 1 oz bars, each 27.00 mm x 47.00 mm x 2.70 mm, total about 343 cubic centimeters bare. One Asahi 100 oz bar at 178 mm x 77 mm x 22 mm is about 302, which our arithmetic puts at 12% less. With small bars, the cards, capsules and tubes take up the extra room.

The FDIC says the contents of a bank safe deposit box aren't covered by deposit insurance, and that no box or home safe is completely protected from theft, fire or flood. Silver also reacts with sulfurous gases to form surface tarnish, so bars keep their finish longest inside their tubes, capsules or cards.

Reselling Bars and Checking the Bid First

Find out what a bar sells for before you buy it. The CFTC defines the spread as the difference between a seller's buy and sell prices, and that gap is what a round trip costs you. The Anti-Counterfeiting Educational Foundation's advice is to favor sellers that guarantee their products are genuine and make a two-way market in them. The Royal Mint says an assay card or blister pack adds assurance but isn't essential for resale.

Engelhard and Johnson Matthey Bars on the Secondary Market

Current-production bars from makers that publish specifications are the simplest for the next buyer to check. Engelhard and Johnson Matthey bars, named on most brand lists, aren't current production. Johnson Matthey's gold and silver refining business went to Asahi in a sale announced on December 15, 2014, and Engelhard has belonged to BASF since 2006.

That's why Engelhard silver bars and Johnson Matthey silver bars reach you only as secondary market silver, bars someone has owned before. They test differently too. One verifier maker reports that genuine older Engelhard bars can read out of range because they're around .995 silver, not .999, or hold more contaminants. Judge a borderline reading alongside weight, dimensions and markings.

Silver Bars as an Investment: Costs, Risks and IRA Rules

A silver bar pays no interest or dividend, and its worth rises and falls with the silver price. You pay a premium over spot going in and sell at a bid below spot coming out, and the CFTC lists storage and insurance among the other potential costs of physical metal. No maker, size or format removes those.

IRS Publication 590-A says an IRA can invest in certain silver bullion. Two conditions sit in the tax code at 26 U.S.C. 408(m): the bullion must meet the minimum fineness a regulated futures market requires for delivery, and it must be in the physical possession of the IRA trustee. A bar kept at home isn't IRA metal. The code names no brands, and our IRA-eligible silver page lists bars offered on that basis.

We're not a registered investment advisor and can't give individual investment or tax advice, so speak with a tax professional or financial advisor.

How Our Two-Way Market Applies These Checks

On our marketplace, each product page shows a bid beside the ask, so the price to sell is visible on the day you buy. We verify every item with modern testing equipment and numismatic expertise, and we guarantee that each one is genuine and contains the weight, fineness and purity advertised. Bullion Standard Pro members see live, executable wholesale bid and ask pricing on the same bars. We've operated from San Diego, California since 2010.

Frequently Asked Questions

What's the best size silver bar to buy?

No size wins on every count. A 100 oz bar is 6.86 lb of silver in one piece that can only be sold whole, while ten 10 oz bars or one hundred 1 oz bars can be sold a few at a time. Against that, the premium per ounce generally falls as size rises. The size that fits is the one that matches the amounts you'd expect to sell at one time.

Are silver bars or coins better?

Neither is better across the board. The Royal Mint's glossary describes bars as typically offering lower premiums than coins, so more of what you pay goes to silver. Bars aren't legal tender and, as The Perth Mint points out, carry no effigy for that reason. A government-issued coin has both.

Are silver bars a good investment?

That depends on what you need the holding to do, and nobody can promise where silver's price goes. A bar earns no income, so a sale breaks even only once the bid for it has climbed past the price you paid, premium included.