The StoneX Bullion 1 kg Silver Bar: A Coin in Bar Form for Collectors and Investors

The name StoneX has long been associated with credibility, security and expertise in the precious metals trade. For investors and collectors who want an exclusive product that carries that reputation in physical form, the StoneX Bullion 1 Kilo Silver Coin Bar is one of the company’s flagship pieces. With more than 100,000 sold, it has become one of the most popular silver coin bars in the world. Struck from 999.9 fine silver and manufactured in Switzerland, it pairs a full kilogram of investment-grade metal with the character and authority of a genuine coin issue – substantial in weight, elegant in presentation, and designed for buyers who expect more than a standard investment bar.

More Than a Bar: The Coin-Bar Difference

Although it has the size and presence of a substantial silver bar, the 1 Kilo StoneX Coin Bar is, strictly speaking, a legal tender coin. It is issued by the Pacific island nation of Niue with a face value of 30 Niue Dollars and carries the effigy of King Charles III. That official status is exactly what defines a “coin bar”: unlike a conventional silver bar, it is recognised as legitimate currency in its country of issue, adding a layer of government assurance on top of its metal value. Niue is a respected name among bullion buyers, known for issuing a wide range of successful precious metal products, and the presence of the reigning British monarch – Niue’s head of state – gives the piece both a sovereign pedigree and lasting collectible appeal. It is this dual identity, bullion and coin at once, that sets the product apart from the ordinary bars that make up most of the silver market.

Swiss Precision and LBMA-Refinery Quality

Every 1 Kilo StoneX Coin Bar is produced in Switzerland by an LBMA-accredited refinery, reflecting the standards expected at the very top of the international bullion market. The metal itself is 999.9 fine silver – often called “four-nines” silver – placing it among the purest silver products available anywhere. Each piece also carries an integrated security feature on its surface: an additional safeguard that helps authenticate the bar and distinguishes it as a premium format rather than a standard cast product. For investors, that combination of Swiss manufacturing, LBMA-refinery provenance and built-in security translates into genuine peace of mind and strong long-term value retention.

Design and Specifications

The design reads as bullion and coin in a single piece. The obverse bears the effigy of King Charles III together with the name of the issuing country, the year of issue and the face value, marking its status as official legal tender. The reverse carries the distinctive StoneX Bullion design alongside the key bullion details of weight and fineness, underscoring both the authenticity of the product and the heritage of the StoneX name. The finish is clean, modern and unmistakably distinguished – the kind of piece that looks as much at home in a collection as it does in a portfolio.

Why Size Matters: Value in a Kilo of Silver

When buying silver, format has a direct effect on value. Smaller items such as one-ounce coins and bars tend to carry the highest premiums over the spot price, because minting and handling costs are spread across very little metal. A one-kilogram format like this one spreads those same costs across far more silver, so the premium per gram is typically lower than on small-format products. For buyers who want meaningful exposure to silver in a single, easy-to-store piece – without paying small-coin premiums on every gram – the 1 Kilo Coin Bar is an efficient way to do it, while still offering the coin design, integrated security feature and presentation that a plain bar simply does not.

Presentation, Security and Authenticity

The 1 Kilo StoneX Coin Bar is supplied in a clear protective capsule that preserves its finish while keeping the design fully visible. Each piece is accompanied by a certificate of authenticity and presented in a premium StoneX Bullion branded gift box. Combined with the integrated security feature and Swiss, LBMA-refinery production, the result is a product built for confidence and long-term ownership – one that is as suitable for gifting, collection-building and display as it is for straightforward investment.

What UK Buyers Should Know About Tax

For buyers in the United Kingdom, two points are worth understanding clearly. First, silver – unlike investment gold – is subject to VAT, so the price of any silver product, including this one, includes VAT at the standard rate. Second, the coin bar’s legal tender status in Niue does not make it exempt from UK Capital Gains Tax. The CGT exemption that some bullion enjoys applies only to coins that are UK legal tender, such as The Royal Mint’s CGT-free coins like the Britannia and the Sovereign. As a coin issued by Niue, the 1 Kilo Coin Bar is treated like other foreign coins and bars: any gain on disposal falls within the scope of CGT. In the 2026/27 tax year, individuals have an annual exempt amount of £3,000, with gains above it taxed at 18% within the basic-rate band and 24% above it. Tax treatment always depends on your personal circumstances and the rules can change, so for anything specific it is best to speak to a qualified tax adviser.

Trust and Quality with StoneX Bullion

StoneX Bullion is part of StoneX Group Inc., a NASDAQ-listed global financial services company and one of the largest of its kind in the United States. As an LBMA member serving more than 100,000 clients across the UK and Europe, StoneX brings together deep market experience and the reassurance of a major, publicly listed parent. That backing extends well beyond the point of sale: through the StoneX buyback service, customers can sell their bars and coins back at competitive rates based on live metal prices, giving the 1 Kilo Coin Bar a clear and convenient route to liquidity whenever it is needed.

A Long-Term Silver Investment

As a long-term holding, the 1 Kilo StoneX Silver Coin Bar brings together the qualities that make physical silver so attractive: high purity, a trusted producer, real liquidity and a design with genuine collectible appeal. The wider outlook for silver remains supportive, too. Industrial demand continues to grow, particularly in electronics and solar technology, where silver is essential to manufacturing photovoltaic cells and electronic components. Its long-standing role as a hedge against inflation and a store of value during periods of economic uncertainty continues to draw investors, while expanding use in green technologies such as electric vehicles and renewable energy is expected to add further demand. With supply constrained in the years ahead, those forces could continue to support silver prices over the long term – and a full kilogram of 999.9 fine, Swiss-made silver is a substantial and elegant way to take part.

Frequently Asked Questions

What makes the StoneX 1 Kilo Coin Bar different from a standard silver bar?

It combines 999.9 fine silver with the design language of a coin issue. Because it is issued by Niue with a face value of 30 Niue Dollars and carries the effigy of King Charles III, it is legal tender in its country of issue – a status a standard bar does not have. That gives it appeal to both bullion investors and collectors.

Is the StoneX Coin Bar Swiss-made?

Yes. The 1 Kilo StoneX Coin Bar is manufactured in Switzerland and produced by an LBMA-accredited refinery.

What is the purity of the StoneX 1 Kilo Coin Bar?

The bar is struck from 999.9 fine silver, also commonly referred to as four-nines silver.

Is the StoneX 1 Kilo Coin Bar legal tender?

Yes. It is issued by Niue with a face value of 30 Niue Dollars and carries the effigy of King Charles III, which is what gives the product its coin-bar status.

Is the StoneX 1 Kilo Coin Bar CGT-free in the UK?

No. The UK Capital Gains Tax exemption applies only to coins that are UK legal tender, such as the Britannia and the Sovereign. As a coin issued by Niue, this product is treated like other foreign coins and bars and falls within the scope of CGT. Silver products are also subject to VAT in the UK. For advice on your own situation, speak to a qualified tax adviser.

How is the bar packaged?

Each bar is protected in a clear plastic capsule, accompanied by a certificate of authenticity, and presented in a premium StoneX Bullion branded gift box.

Does the bar include a security feature?

Yes. Each bar includes an integrated security feature directly on its surface, adding an extra layer of confidence and product distinction.

Is this product suitable for collectors as well as investors?

Yes. Its full kilogram of silver makes it attractive to bullion investors, while the Swiss-made finish, King Charles III effigy, security feature, capsule, certificate of authenticity and gift box presentation also make it highly suitable for collectors.