1/2 oz Silver Libertad 2011: Value & Prices

If you inherited or found a 2011 half-ounce Silver Libertad, the short answer: it is worth more than a common bullion coin. With only 30,000 struck, this fraction carries a collector premium on top of its silver value. Expect roughly 30 to 60 USD in typical uncirculated condition, and more for a top-graded example.

The Onza Libertad ("Libertad" means "Liberty") is Mexico's flagship modern silver coin, issued by Banco de México, the country's central bank. The half-ounce version is one of the smaller fractional sizes, and lower mintages on the fractionals are exactly why some of them command a real premium.

What you actually have

This is a bullion coin, meaning its base value is tied to its silver content, with a collector premium on top. The specifics for the 2011 half-ounce:

• Metal: .999 fine silver (99.9% pure)
• Weight: 15.5517 grams (1/2 troy ounce)
• Diameter: 33 mm
• Edge: reeded
• Finish: bullion (satin), the investment-grade uniform satin surface
• Mint mark: "Mo" for the Mexico City mint (Casa de Moneda de México)
• Official mintage: 30,000 pieces

The front (obverse) shows the Mexican national coat of arms, an eagle on a cactus devouring a serpent, with the legend "ESTADOS UNIDOS MEXICANOS." The back (reverse) shows the Winged Victory (the angel from Mexico City's Independence Monument) in front of the Popocatépetl and Iztaccíhuatl volcanoes, with the "Mo" mint mark and the year 2011.

What it's worth in 2026

Two things drive the price: the silver floor and the collector premium.

The silver floor is simple math. Half a troy ounce of pure silver is worth whatever half the spot price of silver is on any given day. That is the absolute minimum any genuine example is worth, and it moves with the metals market.

The collector premium sits on top. A 30,000-piece mintage is small for a modern bullion coin, so the 2011 half-ounce trades above melt even in ordinary condition. Where it lands depends on grade.

Condition	Approximate value (USD)
Circulated / handled	melt value plus a few dollars
Uncirculated (raw, nice)	30 to 60
Certified MS-69 (NGC/PCGS)	60 to 120
Certified MS-70 (top pop)	150 and up

These are collector-market ranges, not fixed quotes. The exact number depends on the silver price the day you sell and on demand for the 2011 fractional specifically. Certified top-grade examples (MS-70) are where the real money is, because slabbed, perfect coins are what serious Libertad collectors chase.

Is it rare?

Rare is a relative word. Against a 1-ounce Libertad from the same era, which was minted in far larger quantities, yes, this half-ounce is scarcer. Against the truly rare Libertads (some proof fractionals from the 1990s had mintages under 5,000), no, 30,000 is modest but not tiny.

The honest read: this is a semi-key modern coin. It will always beat spot silver, but it is not a coin that turns up at auction for thousands. If someone tells you a common 2011 Libertad is worth a fortune, they are wrong.

How to check what yours is worth

1. Weigh and measure it. A jewelry scale should read 15.5517 grams, and a caliper should read 33 mm. Genuine silver hits these numbers.
2. Grade it honestly. Bag marks, fingerprints, and toning pull the price down. A crisp, mark-free coin with full luster is worth the top of the range.
3. Consider certification. If the coin looks flawless, getting it graded by NGC or PCGS can move it from the 40 USD range into triple digits. Only worth it for genuinely high-grade pieces.
4. Check the silver price first. Know the melt value before you talk to any buyer, so you can spot a lowball offer instantly.

For context on the series, see our guide to the Onza Libertad silver coins and how the different fractional sizes compare in value.

How to tell if it's genuine

The two fastest tests are weight and diameter. Fakes usually miss on one or both. A real 2011 half-ounce weighs 15.5517 grams and measures 33 mm, no exceptions worth caring about. Beyond that, look for flat, mushy relief, uneven satin finish, or a color that looks off (too gray or too white). Silver has a specific ring and heft that counterfeits struggle to match.

The biggest red flag is price. If someone offers a "silver" Libertad well below melt value, it is fake or it is not silver. Real silver never sells under its metal content.

Where to sell it

To sell your 2011 half-ounce Silver Libertad safely, use a verified coin shop from the Pesoteca directory, which will value it on the spot, or the Pesoteca buy-and-sell forum where collectors trade directly. Photograph the obverse, reverse, and edge, and know the current melt value before you list it. Avoid dumping it to the first buyer on social media, and never sell below the silver floor.

Think you have a mint error or an unusually high-grade example? Post clear photos in the Pesoteca forum and let collectors weigh in before you sell.

1/2 troy oz Libertad silver 2011 Regular BU

This piece is the 1/2 troy oz silver Libertad, minted by the Mexico City Mint in 2011 in its Regular BU version.

Technical data. It contains 15.55 g of pure silver, .999 fineness, and measures 33 mm in diameter. The reverse bears the effigy of the Angel of Independence, chosen by Banxico as the official symbol of the series since 1981. The obverse shows the National Coat of Arms in its pre-1969 version, alongside other historical coats of arms as the family's mark of identity.

Role within the set. It is the upper-intermediate fraction. It weighs exactly half of the flagship piece and is usually minted in smaller runs than the full ounce, which gives it a profile of relative scarcity within the year's set.

Context of the year. In 2011 Felipe Calderón Hinojosa was in office. Silver reached an intraday high close to 49 USD per troy ounce in April, near the historic Hunt record of 1980. It closed the year at 28.18 USD.

Regular BU finish. The Regular finish, catalogued by Banxico as satin or BU, is obtained with dies that receive no special polishing. The result is an even matte luster across the whole surface, with no mirror contrast between fields and relief. It is the traditional bullion finish: it is bought for its weight in pure silver plus a modest minting premium. It is the version collectors seek to build the complete set year by year without decapitalizing on every piece.

Mintage. Banxico reported in its official tables a minting of 36,819 pieces for this combination of fraction, year, and finish. That number is the basis for measuring the piece's relative scarcity within the program.