Most Valuable World Banknotes: 2026 Collector Rankings
The most valuable banknote ever sold at public auction is the 1890 United States $1,000 "Grand Watermelon" Treasury Note, which realized $3,290,000 at Heritage Auctions in January 2014. Below we rank the world's most valuable banknotes in two tiers: the museum-grade record-holders documented at major auction houses, and the accessible collectibles you can actually own in 2026, priced from Planet Banknote's own catalog.
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Last updated: July 2026
How we source these figures. Every price on this page is attributed. Record sales are documented public auction results from named auction houses. Accessible prices are Planet Banknote's own current retail listings. We do not publish estimates we cannot source, and where a figure is uncertain we describe it rather than guess.
What is the most valuable banknote in the world?
The most valuable banknote ever sold at public auction is the 1890 United States $1,000 "Grand Watermelon" Treasury Note, which realized $3,290,000 at Heritage Auctions on January 10, 2014. Guinness World Records lists it as the most expensive banknote ever sold at auction.
The "Grand Watermelon" nickname comes from the three large ornamental zeros on the reverse, whose pattern resembles watermelons. Only a handful of examples are known, and most are held in permanent collections. The 1890 record eclipsed an earlier high set by a related note: an 1891 $1,000 Treasury Note sold for $2,585,000 at Heritage Auctions in April 2013.
These record-holders set the ceiling for the category. They are not typically available to buy, and the figures below reflect what they realized at auction, not current market offers.
| Rank | Banknote | Realized price | Documented source |
|---|---|---|---|
| 1 | 1890 $1,000 "Grand Watermelon" Treasury Note (United States) | $3,290,000 | Heritage Auctions, Jan 2014 |
| 2 | 1891 $1,000 Treasury Note (United States) | $2,585,000 | Heritage Auctions, Apr 2013 |
Realized prices reflect documented public auction results. These notes are held in private and institutional collections and rarely trade.
What are the most valuable banknotes you can actually buy in 2026?
Seven-figure record-holders almost never change hands, so most collectors focus on notes with real availability and strong provenance. The highest-value pieces at Planet Banknote in July 2026 range from a 100-note consecutive Zimbabwe 100 trillion dollar bundle at $19,369 down to accessible single notes under $200.
The table below ranks the most valuable notes Planet Banknote currently stocks, by retail price. Every note is sourced direct from authorized distributors, inspected through our Planet Banknote Verified process, and ships with a free Certificate of Authenticity.
| Rank | Banknote | Retail price | Source |
|---|---|---|---|
| 1 | Zimbabwe 100 Trillion Dollar note (P-91), 100-note consecutive UNC bundle with COA | $19,369 | Planet Banknote retail, July 2026 |
| 2 | United States large-size and National Bank Notes, high grade | up to ~$18,900 | Planet Banknote retail, July 2026 |
| 3 | Zimbabwe 100 Trillion Dollar note (P-91), PMG 68 Superb Gem UNC EPQ | $367 | Planet Banknote retail, July 2026 |
| 4 | Zimbabwe 100 Trillion Dollar note (P-91), PCGS 68 Superb Gem UNC PPQ | $329 | Planet Banknote retail, July 2026 |
| 5 | Zimbabwe 100 Trillion Dollar note (P-91), raw UNC (AA prefix) | $198.17 | Planet Banknote retail, July 2026 |
| 6 | Zimbabwe 20 Trillion Dollar note, 5-note AA UNC set | $189 | Planet Banknote retail, July 2026 |
| 7 | Zimbabwe 50 Trillion Dollar note (P-90), raw UNC | $119 | Planet Banknote retail, July 2026 |
Planet Banknote current retail, July 2026. Prices change with inventory and market conditions.
The Zimbabwe 100 trillion dollar note (Pick P-91) anchors this tier for good reason. It is the highest-denomination banknote of the modern era, with fourteen zeros (100,000,000,000,000 dollars). It was dated 2008, released in January 2009 during hyperinflation that peaked at approximately 79.6 billion percent month-on-month in mid-November 2008 according to economist Steve Hanke of the Cato Institute, and withdrawn in April 2009 when Zimbabwe abandoned its dollar. The Guardian documented in 2016 that these notes had become sought-after collectibles with strong resale value.
What makes a banknote valuable?
Four factors drive banknote value: rarity, condition, historical significance, and collector demand. Denomination alone does not set price. A common high-denomination note can be worth far less than a scarce small-denomination rarity.
- Rarity. How many examples survive. The Grand Watermelon note commands seven figures partly because only a few exist. Notes withdrawn quickly, like Zimbabwe's trillion series, have a naturally finite supply.
- Condition. A certified grade on the 1 to 70 scale, with EPQ (PMG) or PPQ (PCGS) confirming original, unaltered paper. A PMG 68 EPQ note carries a clear premium over a raw uncirculated example of the same note.
- Historical significance. Notes tied to famous events or hyperinflation episodes carry a story collectors want to own. Hyperinflation currency from Zimbabwe, Venezuela, Germany, Hungary, and Yugoslavia is a whole collecting category on its own.
- Demand. How many collectors actively pursue the note. Strong, sustained demand is what turns a scarce note into a valuable one.
Denomination is a common source of confusion. The Zimbabwe 100 trillion dollar note is the highest-denomination banknote of the modern era, yet a raw example retails for under $200 because so many survive in uncirculated condition. Hungary's 1946 pengő series reached even higher face values, into the sextillions, but also survives in quantity and remains inexpensive. Scarcity and condition, not the number of zeros, drive price. For the full picture, see our ranking of every major hyperinflation and our Hungary banknotes collection.
How is banknote value verified?
Value is verified two ways: independent third-party grading and trusted sourcing. Both matter, because a valuable note is only worth its price if it is genuine and accurately graded.
PMG and PCGS grade banknotes on a 1 to 70 numerical scale and seal them in tamper-evident holders. The EPQ (PMG) and PPQ (PCGS) designations confirm the paper is original and unaltered, with no cleaning, pressing, or restoration. For a full explanation of grades and what they mean, see our Banknote Grading Guide and our selection of graded banknotes.
Sourcing is the other half. Planet Banknote acquires notes direct from mints, central banks, and authorized distributors, inspects each one through the Planet Banknote Verified process, and includes a free Certificate of Authenticity with every order. US orders ship free via USPS Priority.
Related resources
- United States Banknotes: large-size notes, National Bank Notes, and high-grade rarities up to approximately $18,900.
- Zimbabwe Banknotes: the complete trillion series, bearer cheques, and the flagship 100 trillion dollar note.
- Graded Banknotes: our full selection of PMG and PCGS certified notes.
- Zimbabwe 100 Trillion Price Index: grade-by-grade retail pricing, updated monthly.
- Hyperinflation Sets: curated multi-note sets from history's most dramatic currency collapses.
- Banknote Grading Guide: how the PMG and PCGS 1 to 70 scale works.
Frequently asked questions
What is the most valuable banknote in the world?
The most valuable banknote ever sold at public auction is the 1890 United States $1,000 Treasury Note, known as the Grand Watermelon note. It realized $3,290,000 at Heritage Auctions on January 10, 2014, a world record confirmed by Guinness World Records. Its nickname comes from the large ornamental zeros on the reverse, which resemble watermelons.
What are the most valuable banknotes a collector can actually buy in 2026?
Seven-figure record-holders rarely change hands, so most collectors focus on accessible notes with strong provenance. At Planet Banknote, the highest-value items in July 2026 include a 100-note consecutive uncirculated bundle of the Zimbabwe 100 trillion dollar note at $19,369 and high-grade United States large-size notes priced up to approximately $18,900. A single PMG 68 EPQ Zimbabwe 100 trillion note retails for $367.
What makes a banknote valuable?
Four factors drive banknote value: rarity, meaning how few examples survive; condition, expressed as a certified grade on the 1 to 70 scale, with EPQ or PPQ confirming original paper; historical significance, such as ties to famous events or hyperinflation episodes; and demand, meaning how many collectors want it. Denomination alone does not set value, and a common high-denomination note can be worth less than a scarce small-denomination rarity.
Why is the Zimbabwe 100 trillion dollar note so collectible?
The Zimbabwe 100 trillion dollar note (Pick P-91) is the highest-denomination banknote of the modern era, with fourteen zeros. It was dated 2008, released in January 2009 during hyperinflation that peaked at approximately 79.6 billion percent month-on-month in mid-November 2008 according to economist Steve Hanke of the Cato Institute, and withdrawn in April 2009. The Guardian documented in 2016 that these notes had become sought-after collectibles. Planet Banknote retails raw uncirculated examples from $198.17 in July 2026.
How do I know a valuable banknote is authentic?
Authentication comes down to third-party grading and trusted sourcing. PMG and PCGS certify notes on a 1 to 70 scale and seal them in tamper-evident holders. Planet Banknote sources every note direct from mints, central banks, and authorized distributors, inspects each one through the Planet Banknote Verified process, and includes a free Certificate of Authenticity with every order.
Planet Banknote is a family-owned dealership in Sarasota, Florida, founded in 2021. Every note is sourced direct from mints, central banks, and authorized distributors, inspected through our Planet Banknote Verified process, and ships with a free Certificate of Authenticity. US orders ship free via USPS Priority, and every order includes a free bonus gift.