Overview of the Perth Mint 100 Gram Gold Bar (In Assay Card)

Perth Mint's 100 gram gold bar is one of the most widely recognized large-format gold bars in the global bullion market. Struck to .9999 fine gold and weighing 100 grams (approximately 3.215 troy ounces), this bar occupies a practical middle ground between smaller fractional bars and the larger kilogram format, making it a meaningful holding for serious buyers. Each bar is presented in a sealed assay card, which encases the bar in tamper-evident packaging that certifies its weight, purity, and authenticity at the point of production. We carry this product as part of our broader inventory of precision-minted gold bars from established international refineries.

History and Background

The Perth Mint is one of the oldest and most respected minting institutions in the world, established in 1899 as part of the British Royal Mint system to process gold mined during the Western Australian gold rush. Over more than a century of continuous operation, it evolved from a colonial branch mint into an internationally recognized refinery and producer of bullion bars, coins, and rounds. Today it operates under the ownership of the Government of Western Australia, lending it a degree of institutional credibility that is relatively rare among the world's refineries. Perth Mint's entry into the modern bullion bar market cemented its reputation as a producer of precision-struck, investment-grade gold products sought by buyers across Asia, Europe, North America, and Australia. The 100 gram bar format has long been a standard offering in Perth Mint's bar lineup, reflecting the refinery's focus on producing denominations that align with active market demand. The assay card packaging, which has become closely associated with the Perth Mint brand, was introduced to enhance product integrity and reduce handling concerns throughout the distribution chain.

Design and Aesthetics

The Perth Mint 100 gram gold bar features a clean, precisely struck face that carries the refinery's name, the bar's weight, and its .9999 fine gold purity designation engraved directly into the surface. A serial number is also stamped on the bar, which ties the physical piece to its assay card documentation. The overall aesthetic reflects Perth Mint's approach to bullion production: straightforward and institutional, with the bar's specifications front and center rather than decorative flourishes. The assay card itself frames the bar within a professional format that includes printed authentication details, Perth Mint branding, and the bar's identifying information. The sealed card is designed to allow visual inspection of the bar without removing it from its protective enclosure, preserving both the bar's surface condition and its documentation in a single unit. The combination of the struck bar and the assay card creates a cohesive, professionally packaged product that presents well whether held privately or traded through the secondary market.

Authenticity and Product Integrity

Perth Mint's production standards are among the most stringent applied by any refinery globally. Each 100 gram bar is assayed and serialized before being sealed in its assay card, with the card itself serving as a direct record of the bar's confirmed weight and purity. The .9999 fine gold standard represents four-nines purity, which is the highest commercially produced standard for gold bars of this format. The tamper-evident seal on the assay card provides a reliable indicator of whether the packaging has been opened or compromised since leaving the refinery. Every product we carry is verified for authenticity, weight, and purity before it reaches our customers. Perth Mint's institutional standing, combined with the bar's serialized assay card, provides an additional layer of confidence that is particularly meaningful for a product at this weight and price point. The bar's serial number also allows for traceability back through the production record, which is a feature not all bar formats offer at this size.

Condition and Packaging

The Perth Mint 100 gram gold bar is offered in new condition, sealed within its original assay card directly as packaged at the refinery. Bars in assay cards are not subject to repackaging or resealing by any party in the distribution chain, so the condition you receive reflects the state in which it left Perth Mint's facility. The sealed card protects the bar's surface from handling marks, toning, and environmental exposure during transit and storage. Individual bars ship in their assay cards, which provide sufficient protection without additional packaging. When purchasing multiple bars, they are typically grouped and protected to prevent movement or surface contact during transit. Because these bars are sealed at the mint, the standard secondary market caveat about contact marks or handling signs does not apply here. The assay card is a core part of the product, and buyers should take care to keep it intact, as an unsealed or damaged card can affect the bar's resale characteristics in certain markets.

Pricing and Market Factors

Pricing for the Perth Mint 100 gram gold bar is calculated using the current spot price of gold, adjusted by a per-ounce or per-gram premium that reflects the cost of production, packaging, and distribution. At 100 grams, this bar sits in a format that typically carries a lower premium per gram than smaller fractional bars, since production and packaging costs are spread across a larger quantity of metal. Our pricing reflects real-time market conditions and is updated continuously to keep pace with spot price movements. Perth Mint's reputation as a government-affiliated refinery contributes to the premium buyers pay for this bar relative to comparable products from lesser-known refineries. The assay card packaging also adds a modest premium compared to loose bars of equivalent weight, but that packaging provides meaningful value in the form of documented authenticity and enhanced handling convenience. Buyers comparing bars across refineries should account for these factors when evaluating the true cost of ownership at this format.

Selling and Liquidity

The Perth Mint 100 gram gold bar is a widely recognized format that trades actively in both the wholesale and secondary markets. The combination of a known refinery, standardized .9999 purity, and a serialized assay card makes this bar straightforward to evaluate for dealers, wholesalers, and private buyers globally. The 100 gram weight is a common denomination in markets across Asia and Europe, which contributes to its broad resale recognition outside the United States as well. We operate within a two-way market model that supports both buying and selling within the same platform. Liquidity is something we believe buyers should consider before a purchase is made, not only when it is time to sell. Our competitive buyback pricing for products like this bar is designed to reflect current wholesale bid conditions, giving sellers a transparent and efficient exit option without the uncertainty of seeking third-party buyers independently.

Why Buy the Perth Mint 100 Gram Gold Bar?

The Perth Mint 100 gram gold bar in assay card stands out because it combines meaningful metal weight with the documentation and recognizability that make a bar easy to handle, store, and eventually resell. At 100 grams, buyers gain meaningful exposure to gold's metal value at a size that is more manageable than the kilogram format while still benefiting from tighter per-gram premiums than smaller bars typically offer. The sealed assay card removes any question about the bar's provenance and eliminates the need for additional verification at the time of resale. Perth Mint's government affiliation and global reputation make this bar one of the more recognized refinery products available at this weight. Buyers who prioritize refinery credibility alongside pricing efficiency will find this bar a natural fit, particularly when comparing it against bars from private refineries that may carry similar metal value but less broad-based market recognition.

Why Buy from Bullion Standard?

We built our platform around the principle that buyers deserve transparent pricing and honest information at every stage of the transaction. Our pricing is tied directly to real-time market conditions, and we display the bid/ask spread on each product page so you can evaluate both sides of the transaction before committing. We carry Perth Mint bars as part of a broader inventory of precision-minted gold products from reputable refineries, and every item we sell is verified for authenticity, weight, and purity. Our credentials reflect a commitment to operating within established industry standards. We hold an A rating with the Better Business Bureau, maintain memberships in the American Numismatic Association and the National Coin and Bullion Association, and are authorized dealers for both PCGS and NGC. Our two-way market model means that when you are ready to sell, you can do so through the same platform where you purchased, using competitive buyback pricing that reflects real wholesale market conditions. We accept a wide range of payment methods and fulfill orders with reliable, secure shipping so that the experience after the purchase reflects the same level of care as the purchase itself.

Get Near-Spot Pricing with Bullion Standard Pro

Bullion Standard Pro gives members access to live, executable wholesale bid and ask pricing for gold bars including the Perth Mint 100 gram format. Rather than paying retail premiums or working with indicative price ranges, Pro members transact at wholesale market prices that reflect current supply and demand without additional dealer markups layered on top. For a product at this weight and price point, the difference between retail and wholesale pricing can be meaningful, and Pro is designed to narrow that gap. The platform also provides real-time portfolio valuation using current wholesale bid prices, which gives holders of large-format gold bars a more accurate picture of their current liquidation value than estimated retail prices typically offer. Proprietary analytics tools allow members to compare premiums, bid/ask spreads, and historical market data across products, supporting more informed decisions about when and what to buy or sell. For buyers who take their gold bar holdings seriously, Pro provides a level of market transparency that is difficult to find elsewhere in the physical bullion space.

Flexible and Secure Payment Options

We support a broad range of payment methods to make the buying and selling process as straightforward as possible. Major credit cards including Visa, Mastercard, American Express, and Discover are accepted, along with PayPal, bank-connected payments through Plaid, wire transfer, paper check, and cryptocurrency payments via BitPay. Each payment method is processed through a secure transaction environment designed to protect your financial information and give you confidence throughout the checkout process. For high-value purchases like a 100 gram gold bar, wire transfer is often the most cost-effective option, and our team is available to assist with any questions about payment methods or transaction processing.