What Does Argenteus Mean?

The Latin adjective argenteus means "made of silver" or "silver." The name is used by numismatists for this denomination, and surviving documentary evidence from the Tetrarchic period also identifies the silver coin as an argenteus.

When Was the Argenteus Introduced?

The coin appeared during Diocletian's major currency reform around AD 294–295. The reform created a coordinated system of gold, high-fineness silver, billon, and bronze denominations under the Tetrarchy.

The argenteus became the reform's principal high-fineness silver coin.

How Much Did an Argenteus Weigh?

The important distinction is between the intended weight standard and the weight of an individual surviving coin. Museum examples of Diocletian's argentei range from roughly 2.6 grams to more than 3.6 grams, so a narrow "typical" weight range can be misleading.

Was the Argenteus Based on the Denarius?

Yes, in an important sense. The argenteus was struck to a standard of about 96 coins to the Roman pound, close to the reduced denarius standard associated with Nero. That made the new coin deliberately reminiscent of an earlier era of substantial silver coinage.

But it was not simply a revived denarius. It belonged to Diocletian's new monetary system and had its own place within the Tetrarchic currency structure.

From the Kinzer Coins Collection

Herennia Etruscilla: Crisis-Era Roman Silver

Silver from the very crisis the argenteus answered. Struck AD 249 to 251, in the decades of debasement before Diocletian's reform, NGC certified.

$150.50 View This Coin

What Was an Argenteus Worth?

By AD 301, documentary evidence valued an argenteus at 100 denarii. In this context, the denarius functioned primarily as a unit of account rather than the familiar silver denarius coin of the early Empire.

This distinction matters because saying an argenteus was "worth 100 denarii" does not mean Romans were exchanging it for one hundred old silver denarii.

What Appears on an Argenteus?

The obverse normally carries the portrait and titles of the issuing ruler. The most famous reverse type shows the four Tetrarchs sacrificing together at an altar before a fortified enclosure, a powerful image of unity and shared rule.

Other reverse types exist as well. For example, some later Diocletian argentei use a wreath design, so collectors should not assume every genuine argenteus must show the four-ruler sacrifice scene.

Which Rulers Issued Argentei?

Argentei are especially associated with the First Tetrarchy: Diocletian, Maximian, Galerius, and Constantius I. The denomination continued into the political changes that followed the original Tetrarchic arrangement, and argentei are also known for Constantine I.

Because production varied by ruler, mint, and issue, collectors should attribute individual coins by their legends, mintmarks, and standard references rather than relying on a single date range.

How Long Was the Argenteus Used?

Regular production was relatively brief. The denomination belongs mainly to the Tetrarchic reforms and the opening years of the fourth century. As Constantine's monetary system developed, other silver denominations eventually became more important.

It is therefore better to describe the later siliqua as part of a subsequent Constantinian silver system rather than as a simple one-for-one replacement for the argenteus.

Are Argentei Rare?

Argentei are much scarcer than the enormous quantities of Late Roman bronze that survive, but rarity varies sharply by ruler, mint, reverse type, and condition. Some issues are obtainable with patience; others are genuinely difficult.

Collectors often prize strong portraits, complete legends, attractive surfaces, unusual mints, and historically important reverse types.

Why the Argenteus Matters

The argenteus captures Diocletian's attempt to impose order on a monetary system transformed by the third-century crisis. Its high-fineness silver, denarius-like weight standard, Tetrarchic imagery, and short production life make it one of the clearest numismatic markers of the transition into the Late Roman Empire.

From the Kinzer Coins Collection

Age of Chaos: Six Crisis-Century Silver Coins

Six silver coins from the third-century collapse that made Diocletian's reform necessary. The before picture of the argenteus story.

$703.50 View This Set

It was not a magic cure for Roman inflation. It was a carefully engineered silver coin at the center of one of Rome's most ambitious currency reforms.

History wasn't just written. It was minted.

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