Most people who buy their first Roman coin do it on impulse. They see a denarius of Marcus Aurelius on a friend's shelf, or an Etsy listing they can't unsee, or they read something about Septimius Severus and want to hold a coin from that reign. The first purchase is usually emotional. The second purchase is when collecting starts.
This guide is for the first purchase. It answers the practical questions: what's a sensible first coin, where to buy it without getting burned, what €100 buys versus €500, how to tell real from fake before you hand over money, and how Aurora's lifetime authenticity guarantee actually works. By the end you should know exactly what to look for and where to look. The full catalogue is at /collections/coins if you want to skip ahead.
What to buy first: three sensible starting points
Pick a coin you find emotionally interesting, not one you think will appreciate. The first coin is for love, not for portfolio. That said, three categories serve first-time buyers especially well.
1. A silver denarius of a major emperor (€100 to €300)
The silver denarius is the workhorse of Roman coinage. It circulated for over four centuries, from 211 BC to the mid-third century AD. Surviving examples are plentiful and well-catalogued. A first denarius of Trajan, Hadrian, Antoninus Pius, or Marcus Aurelius — all reigns of 15+ years with heavy minting — sits in the €100 to €300 range for collectible condition. You get a coin that's 1,800 to 1,900 years old, with a sharp portrait, full legend, and a reverse type with real historical meaning. RIC-catalogued. Common enough that there's no provenance anxiety, rare enough that holding one feels significant.
What to look for in a starter denarius: weight in the 3.0 to 3.5 gram range (post-Trajan can be lighter), clear portrait with visible hair detail, legible obverse legend, intact reverse. Patina is a plus but not required at this price point. Avoid coins described as "tooled" or "smoothed" — that means someone modified the surface, which is value-killing.
2. A bronze as or dupondius of an interesting emperor (€50 to €200)
If €100 is the budget, the bronze as is the most coin per euro you can buy. As coins are larger than denarii (25 to 28 mm vs 17 to 20 mm), often with strong patina, and just as well-catalogued. The downside: bronze coinage tends to be more worn than silver because it circulated more heavily. Look for coins where the central portrait is still clear, even if the legend has wear.
Particularly interesting starter bronzes: Nero (the empire's most polarising emperor, plenty of varied reverses), Vespasian (post-civil-war stability, Judaea Capta reverses), Hadrian (vast variety of provincial reverse types), Marcus Aurelius (philosophical emperor, classic stoic portraiture). A clean Nero as in collectible condition runs €80 to €150.
3. A sestertius for visual impact (€150 to €600)
The sestertius is the largest commonly-collected Roman coin: 32 to 36 mm, 25 to 28 grams. The portrait is huge by ancient-coin standards, and the reverse engraving is often the finest in Roman numismatics. A sestertius is a display coin in a way denarii aren't — you hold it and feel the weight of empire.
The catch: sestertii in good condition with good patina are more expensive than denarii of the same emperor. A clean Trajan sestertius starts around €200; a sharp Antoninus Pius sestertius with cabinet patina is €400 to €800. If display matters more than portfolio depth, this is the right starting point.
Where to buy: ranked from safest to most risky
Specialist numismatic auction houses
Classical Numismatic Group (CNG), Roma Numismatics, Naville Numismatics, Heritage Auctions, Künker. These houses publish full provenance research on every lot, employ in-house numismatists, and operate under strong reputational and legal incentives to sell genuine pieces. The downside: you pay a buyer's premium (typically 15 to 20 percent on top of hammer price), shipping is extra, and once the gavel falls there's no retroactive guarantee — if you later doubt the coin, you eat the loss.
Auction houses suit collectors who already know what they want and can read a catalogue critically. For a first-time buyer, the learning curve on auction protocols is steep.
Established specialist dealers with written lifetime guarantees
Aurora Antiqua and equivalent specialist dealers. You pay retail markup over auction prices, but you get four things in return: pre-vetted authenticity (the dealer's reputation is on every coin), in-writing lifetime guarantee, no buyer's-premium opacity, and a direct relationship if questions arise. Aurora's catalogue at /collections/coins follows this model: every coin RIC-referenced, photographed obverse and reverse at 2,048 pixels, weighed and measured, with provenance noted where documented, and a written lifetime authenticity guarantee.
What "lifetime guarantee" means at Aurora specifically: if a coin bought from Aurora is ever shown to be inauthentic — at any point, by any independent numismatist or authentication service — Aurora refunds the full purchase price. No expiry, no fine print. The guarantee is in writing with every order. For first-time buyers, this is the structural difference that justifies the retail markup.
General marketplace listings (eBay, Etsy, Facebook Marketplace)
Variable. The same coin can sell on eBay for less than auction price (good for budget) or twice auction price (bad for budget). Quality is unvetted. Many genuine coins sell on marketplaces, but so do fakes, tooled coins, and overpriced common types. The authentication burden transfers entirely to the buyer.
Marketplaces work for buyers who already know how to authenticate: weight check, magnification of die-style and portrait detail, patina inspection, legend epigraphy comparison against published references. For first-time buyers, marketplaces are not the right starting place. Save the marketplace shopping for coin number five or ten, after you've learned what real looks like in hand.
Anonymous online sellers, Telegram channels, "estate sales"
Avoid. Provenance is typically fabricated, prices are bait, and the legal exposure in EU and US jurisdictions is real. A €40 "Roman gold ring with intaglio, from grandfather's collection" is almost certainly modern, possibly looted, and never worth the headache.
What €100, €250, and €500 actually get you
Concrete examples from Aurora's current and recent catalogue at the time of writing:
€100 to €150 tier
Common denarius in collectible condition: Trajan, Hadrian, Antoninus Pius, Marcus Aurelius, Septimius Severus. Bronze as or dupondius of any major early-to-middle Imperial emperor. Late-Roman folles in good condition. Late Roman silver-washed antoniniani of Probus, Aurelian, or Diocletian.
What you don't get at this tier: high-grade portraits, rare types, gold, sestertii in good condition, female-portrait Severan denarii in best condition.
€200 to €350 tier
Sharper-grade denarii of the same major emperors. Severan-period denarii including Julia Maesa, Julia Mamaea, Severus Alexander. Decent-grade sestertii of common emperors. Republican denarii of moneyer types. Rare third-century antoniniani.
This is where most first-time collectors should buy. You get noticeably better quality without crossing into investment-grade prices.
€400 to €700 tier
Higher-grade sestertii with patina. Late Republican imperatorial denarii (Brutus, Mark Antony, Julius Caesar). Rare reverse types of common emperors. Silver of less-common Severan figures (Septimius Severus son issues, Julia Domna).
€800+ tier
Gold aurei of common emperors. High-grade Trajan or Hadrian sestertii with full cabinet patina. Republican aurei. Less-common emperor silver in top grade. Severan dynastic groups in matched condition.
How to spot fakes before buying
For first-time buyers, learn these four checks before you put money down. If a seller can't satisfy all four, walk away.
- Weight check. A genuine denarius weighs 2.5 to 4 grams. A genuine sestertius weighs 22 to 30 grams. A genuine aureus weighs 5 to 8 grams. If the seller can't or won't provide the exact weight, that's a hard no. Cast forgeries are usually heavier or lighter than the target standard by 10 percent or more.
- Edge profile. Genuine Roman coins were struck on rolled flans, leaving a slight irregularity at the edge and no seam line. Cast forgeries show smooth edges with a visible seam where the casting halves met. Ask for a high-resolution edge photo before committing.
- Portrait die-style. Each Roman emperor has documented die-style features. Trajan has a strong jaw and forward-combed hair. Hadrian wears a full beard. Septimius Severus has tight curls and a long beard. If the portrait on the coin looks "off" compared to museum-quality references, trust that instinct. Modern forgers often copy from a single auction photograph and miss period-correct die-style variation.
- Patina morphology. Genuine patina follows the relief of the coin in three dimensions. It doesn't sit on top of the surface uniformly, and it doesn't wipe away with a thumb to bright metal. Be especially suspicious of "cleaned" coins — they're often modern fabrications that never had patina to begin with.
For the full seven-point authentication framework Aurora applies to every coin before listing, see our pillar guide on how to authenticate an ancient Roman coin.
Reading the inscriptions
Roman coin obverses carry the emperor's name and titles in heavily abbreviated Latin. The four most-common abbreviations to recognise: IMP (Imperator, emperor), AVG (Augustus, supreme imperial title), CAES (Caesar, junior-partner heir), PM (Pontifex Maximus, chief priest). Numbered titles like TR P V (fifth tribunician year) and COS III (third consulship) let you date the coin within one year.
The full glossary with a worked example on a Trajan denarius is at what the letters on Roman coins mean. For an overview of denominations covered above (denarius, sestertius, antoninianus, aureus), see our denomination guide.
Legal questions for first-time buyers
In the United States, the United Kingdom, Germany, France, Belgium, the Netherlands, Canada, Australia, and Japan, ownership and import of ancient Roman coins is fully legal under standard antiquities regulations. The 1970 UNESCO Convention on cultural property is the benchmark: coins with documented pre-1970 provenance are uncontroversial; coins from source countries (Italy, Greece, Turkey, Egypt, Bulgaria, Cyprus) without provenance documentation are restricted, and buying them creates legal exposure.
For a country-by-country guide to Roman coin ownership legality with current 2026 regulations, see are ancient Roman coins legal to own.
Practical buying checklist
Before you buy, the seller should be able to provide:
- Exact weight in grams
- Exact diameter in millimetres
- RIC reference (or OCRE, BMC, Sear catalogue number)
- High-resolution photographs of obverse and reverse, plus an edge shot
- Provenance statement (even if limited to "old European collection")
- Return policy in writing
- Authenticity guarantee terms (lifetime, time-limited, or none)
If the seller can't or won't provide any of these for an asking price above €100, that's a signal.
What happens after the first coin
Most first-time buyers either stop at one or buy steadily for the next twenty years. There's no in-between. If you fall into the second category, three things accelerate the journey: a basic reference library (RIC volumes for the period you focus on, plus David R. Sear's Roman Coins and Their Values), a magnifying loupe at 10× to 20× for die-style inspection, and a digital jeweller's scale accurate to 0.01 grams.
Aurora's catalogue is structured to support both first-time and returning buyers. Every listing carries the full data a collector needs: weight, dimensions, RIC reference, OCRE cross-reference where applicable, provenance where documented, two high-resolution photographs, and the written lifetime authenticity guarantee. Start at /collections/coins for the full Roman silver and bronze, or /collections/severan-dynasty-coins for the dedicated Severan-dynasty group.
Specific entry points for first-time buyers from Aurora's current stock:
- Julia Mamaea silver denarii — five pieces, all RIC IV catalogued, €120 to €250 range. Strong starting point if female-portrait Severan-dynasty coins interest you.
- Trajan silver denarii — three pieces from the Roman Empire's high-water-mark reign. €150 to €300 range.
- Full Roman coin catalogue — broader Imperial silver and the four antoniniani of the Crisis-of-the-Third-Century emperors.
Frequently asked questions
What's a good first Roman coin to buy?
A silver denarius of a major emperor (Trajan, Hadrian, Antoninus Pius, Marcus Aurelius, Septimius Severus) in collectible condition, priced €100 to €300. These reigns are well-catalogued, survival rates are high, and the coins carry strong historical meaning without straining a beginner's budget.
How much should I spend on my first Roman coin?
€100 to €300 is the right range for a first purchase. Below €100 you mostly get worn coins where the portrait detail is gone, which removes much of the emotional payoff. Above €300 you start paying for grade or rarity premiums that beginners can't evaluate critically. €150 to €250 hits the sweet spot for most buyers.
How do I know if a Roman coin is real before buying?
Four checks: exact weight in the correct range for the denomination, edge profile showing struck (not cast) manufacture, portrait die-style matching documented references for the emperor, and patina morphology that follows relief in three dimensions. If the seller can't or won't supply photos and weight to satisfy these checks, walk away. Aurora pre-applies a seven-point authentication framework before listing every coin.
Where is the safest place to buy an authenticated Roman coin?
Specialist dealers with written lifetime authenticity guarantees, like Aurora Antiqua at /collections/coins. You pay retail markup over auction prices but get pre-vetted authenticity, written lifetime guarantee, photograph quality suited to remote evaluation, and a direct relationship if questions arise. For experienced collectors, specialist auction houses (CNG, Roma Numismatics, Naville, Heritage, Künker) offer lower prices with no post-sale guarantee.
Is buying ancient Roman coins legal?
Yes, in the US, UK, Germany, France, Belgium, the Netherlands, Canada, Australia, and Japan, under standard antiquities regulations. Coins with documented pre-1970 provenance are uncontroversial in every major jurisdiction. Coins from source countries (Italy, Greece, Turkey, Egypt, Bulgaria, Cyprus) without provenance documentation face import restrictions. Aurora ships all coins with provenance documentation where available and operates within the 1970 UNESCO framework.
Next steps
Three companion guides if you want to go deeper:
- How to authenticate an ancient Roman coin — the seven physical markers
- Roman coin denominations explained — denarius, sestertius, antoninianus, aureus
- What do the letters on Roman coins mean — Latin titulature glossary
And the catalogue: /collections/coins.