A Roman signet ring was a working tool: a ring set with an engraved gem, or cut with a device directly into the metal, that was pressed into wax or clay to seal letters, wills, contracts and storerooms. The image was the owner's signature. Thousands of these rings and their engraved stones survive, and a genuine one can still be worn today, usually on the little finger or the upper part of a finger, because Roman rings tend to be small. Here is how the Romans actually used their seals, what has come down to us, and what to look for if you would like to wear one.
What made a ring a signet in ancient Rome?
The Romans called it an anulus signatorius, a sealing ring. What made it a seal was the image cut in reverse, either in a hardstone or glass set in the bezel (an intaglio) or engraved straight into a flat metal bezel. Pressed into soft wax, the reversed carving left a crisp image in relief that could be recognised by anyone who knew the owner.
Pliny the Elder, writing in the 1st century AD, tells us that the earliest Roman rings were of iron and that gold rings were at first a mark of rank, a privilege of senators and the equestrian order. Over the following centuries gold signets spread far more widely, and by the time Rome ruled Britain a merchant, an army officer or a well-to-do woman might all own one. Cheaper seals in bronze, silver and moulded glass took the habit well down the social scale.
How the Romans sealed
Letters and wax tablets
Much everyday Roman writing was done on wooden tablets coated with wax, or on thin wooden leaf tablets written in ink. To close a document, the tablets were bound together with cord, and a blob of wax was pressed over the knot and stamped with a signet. The letter could not be opened without breaking the seal, so the recipient knew it had arrived unread and knew at a glance who had sent it.
Wills, contracts and witnesses
Seals gave legal force. Important documents such as wills and contracts were sealed not only by the parties but by witnesses, each pressing his own ring beside his name; a Roman will was traditionally witnessed and sealed by seven people. A disputed seal could be checked against the ring itself, which is why losing one was a serious matter.
Storerooms, jars and strongboxes
Pliny complains that in his day Romans sealed up even their food and wine against their own slaves. Storerooms, chests, amphorae and money bags were all closed with a lump of clay or wax and stamped, so that any tampering would show. Excavations around the Roman world have recovered sealings of exactly this kind; one Roman archive at Zeugma, on the Euphrates, produced tens of thousands of fired clay sealings, each bearing the impression of a ring.
Famous seals
Because a seal stood for its owner, the choice of image mattered. Ancient writers record that Augustus first sealed with a sphinx, later with a portrait of Alexander the Great, and finally with his own portrait, cut by the gem engraver Dioscurides, which later emperors continued to use. Sulla was said to seal with a scene showing the surrender of the African king Jugurtha, his proudest moment, and Pompey with a lion holding a sword. Most Romans chose something simpler: a favourite god, a lucky symbol, an animal, or a scene that said something about who they were.
What the images meant
The repertoire of Roman seal images was large but not random. Gods were the most popular choice, worn for protection and good luck as much as identification: Mercury for trade and profit, Fortuna for good fortune, Minerva for wisdom, Mars for soldiers. Animals, masks, clasped hands and heroes such as Hercules were common too. Some images spoke of the owner's profession or education. Our Roman philosopher intaglio ring of the mid-1st century AD shows a bearded philosopher with a scroll before a herm, an image of Greek learning worn as a seal by educated Romans; its listing notes that two closely related glass intaglios in the British Museum are traced to a glass workshop at Pompeii.
Sea creatures evoked the power of Neptune's realm. Our Roman Triton intaglio ring is a mottled jasper of the 2nd to 3rd century AD engraved with a Triton holding a trident and a conch horn, later set in a French 18ct gold signet mount in the 19th century. For a wider look at engraved gems through the ages, see our collector's guide to intaglio rings.
What survives today
Rings in their original mounts
Complete Roman signet rings, stone and gold together, are the rarest survivals. Many were made with hollow hoops of high-carat gold formed over a core, light and comfortable but easily dented, and far fewer have come down to us intact than loose stones. When one does survive, it is often small. Our small Roman gold intaglio ring of about the 1st century BC, set with a banded agate engraved with a bearded figure, tests at around 23ct and is a UK C½ / US 1; its listing suggests it was made for a child or a young woman.
Loose engraved gems
Far more common are the engraved stones themselves: carnelians, jaspers, agates, nicolos and glass pastes, found on Roman sites across the empire after their gold mounts had been lost or melted down. Collectors since the Renaissance have reset them in new rings, often Georgian or Victorian mounts. These remounted gems are entirely genuine as ancient carvings, and they are frequently the most wearable way to own a piece of Rome. Our guide to why so many antique rings started as something else explains how this happened.
Grand Tour copies
From the 18th century, demand for classical gems outstripped supply, and engravers and glass makers produced new intaglios and moulded copies of famous stones. These are fine antiques in their own right but not Roman. Our Gemma Stosch glass intaglio ring is a good example: a late 18th-century glass copy of a celebrated Etruscan gem showing five warriors of the Seven Against Thebes, later set in a 9ct gold ring hallmarked London 1986. Telling these apart from true Roman work is a large part of a dealer's job, and our guide to buying a genuine ancient Roman ring sets out how we do it.
How to wear a Roman signet ring today
Expect a small size
Roman rings were often worn high on the finger, above the middle joint, and many were made for women and children, so sizes are usually small by modern standards. A ring that is too small for your ring finger may sit beautifully on the little finger, or on the upper part of a finger as the Romans wore them. Our Roman agate intaglio ring, at UK O½ / US 7½, is an unusually generous size, and its listing describes the hollow 22ct gold hoop as silky to wear every day.
Never resize an ancient ring
Stretching or cutting a two-thousand-year-old hoop risks destroying it, and alters an archaeological object for good. Buy a Roman ring that fits the finger you plan to wear it on, or wear it on a fine chain. A ring with a later mount, such as a Roman gem in a 19th-century setting, may be more robust, but ask before any work is done. Our sizing guide for antique rings has more advice.
Wear it gently
A solid ring with a securely set stone can be worn often; a hollow hoop is better kept for occasions. Take it off for sport, gardening and washing up, keep it away from chemicals, and store it on its own so that harder stones cannot scratch it. We would not press it into hot sealing wax: ancient stones and thin gold are best admired rather than used.
Available now
- Roman agate intaglio ring, 2nd–3rd century AD, 22ct gold, UK O½ / US 7½
- Roman Triton intaglio ring, jasper, 2nd–3rd century AD, in a 19th-century French 18ct gold mount, UK M / US 6
- Roman philosopher intaglio ring, mid-1st century AD, original gold mount, UK F½ / US 3
- Small Roman gold intaglio ring, c.1st century BC, UK C½ / US 1
- Gemma Stosch glass intaglio ring, Grand Tour, late 18th century, UK R / US 8¾
Browse all our ancient and Roman rings, our intaglio rings and the full range of antique signet rings. For the long story from Roman seals to Victorian family crests, read our buyer's guide to antique signet rings. We are always happy to send extra photographs, measurements or a detailed condition report on any ancient piece of jewelry.
Frequently asked questions
Did the Romans really use signet rings to seal documents?
Yes. Romans sealed letters, wax writing tablets, wills and contracts with their rings, and witnesses added their own seals to important documents. They also sealed storerooms, jars and chests with stamped clay or wax so that tampering would show.
Why are Roman signet rings so small?
Many were worn above the middle joint of the finger, and many were made for women and children. Today they are usually worn on the little finger or a chain.
Can I wear a genuine Roman signet ring every day?
A solid ring with a secure stone can often be worn regularly with care. Hollow gold hoops are more delicate and best kept for occasional wear. No ancient ring should be resized.
Is a Roman stone in a later setting still a Roman ring?
The engraved gem is genuinely Roman; the mount is later. Many ancient intaglios were reset in the Georgian and Victorian periods, and a good dealer will describe the stone and the setting separately, with a date for each.
How can I tell a Roman intaglio from a later copy?
Look at the style, the stone, the wear and, above all, for close parallels in museum collections. Grand Tour copies tend to be crisper and more naturalistic, and glass copies of famous gems are common. Our guide to buying ancient Roman rings explains the checks in detail.