When Did Diamonds Become Traditional for Engagement Rings?
The diamond engagement ring feels like a centuries-old tradition. It is not. As recently as 1940, only around 10% of brides in the United States received a diamond ring. The tradition as we know it was largely created by a single advertising campaign in 1948. Before that, engagement rings featured coloured gemstones, engraved gold bands, or no ring at all. This is the real history — from Roman iron rings to the slogan that changed everything.
When Did Engagement Rings First Appear?
The Romans originated the formal betrothal ring. From at least the 1st century AD, iron rings called the annulus pronubus were exchanged during sponsalia ceremonies — binding contracts that formalised a couple's intention to marry. Pliny the Elder described this practice in his Natural History (c. 77 AD), and the V&A Museum holds fede rings (featuring clasped hands) that were used as betrothal symbols from Roman times through the medieval period.
By the 15th century, gemstone rings began to appear in aristocratic betrothals. Diamonds were among them — but so were rubies, sapphires, and emeralds. The engagement ring was a sign of wealth and intent, not yet linked specifically to diamonds.
When Was the First Diamond Engagement Ring Given?
GIA describes the 1477 ring from Archduke Maximilian of Austria to Mary of Burgundy as “the earliest written record of the use of a diamond in an engagement ring.” The ring reportedly featured small flat-cut diamonds arranged in the shape of the letter M. However, the record is not quite as clear-cut as the claim suggests: a 1475 diamond ring from Costanzo Sforza to Camilla d'Aragona is documented in a Vatican Library manuscript, and an English widow's will from c. 1417 records a diamond ring inscribed “Vous aime de tout moun coer” (I love you with all my heart).
The Maximilian ring is better described as among the earliest documented diamond engagement rings rather than definitively the first. What is clear is that by the late 15th century, diamonds had entered the language of romantic commitment among European aristocracy — though they remained inaccessible to everyone else for another four centuries.
How Did the South African Diamond Discoveries Change Everything?
In late 1866, a 15-year-old named Erasmus Jacobs found a transparent stone on his father's farm beside the Orange River in South Africa. It was a diamond. Within a decade, the discovery had transformed the global market. Between 1867 and 1877, world diamond production increased more than tenfold, with the majority coming from the Kimberley mines. By 1880, the diamond price had collapsed and mining claims had consolidated from 1,600 to 400.
This flood of supply, combined with the wealth generated by the Industrial Revolution, made diamonds accessible to the middle classes for the first time. Before Kimberley, diamonds were the preserve of royalty and the very wealthy. After it, they were available — though still expensive — to a much broader buying public.
What Did Diamond Engagement Rings Look Like in Each Era?
The appearance of a diamond ring depends entirely on when it was made. Each era developed its own cutting techniques, setting styles, and design language.
| Era | Diamond Cut | Typical Settings | Key Characteristics |
|---|---|---|---|
| Georgian (1714–1837) | Rose cut | Closed-back silver collets, foil backing | Subtle glimmer; diamonds set close to finger; silver over gold |
| Victorian (1837–1901) | Old mine cut | Claw and collet settings, open backs | Cushion-shaped diamonds; warmer sparkle; 18ct and 15ct gold |
| Edwardian (1901–1915) | Old European cut | Millegrained platinum settings | Rounder, brighter diamonds; delicate lacework settings |
| Art Deco (1920–1939) | Old European and early brilliant | Geometric platinum settings | Bold lines; step-cut accent stones; architectural symmetry |
The old mine cut — dominant from the mid-18th century through the late 19th century — takes its name from the Brazilian and Indian “old mines” that supplied diamonds before the South African discoveries. The term entered common use in the late 1800s as African production eclipsed the older sources. For a detailed guide to these cuts, see our comparison of old mine, old European, and rose cut diamonds.
How Did the De Beers Campaign Create the Modern Tradition?
In 1938, De Beers hired the Philadelphia advertising agency N.W. Ayer & Son because diamond sales in America had declined by 50% since 1919. Before the 1940s, diamonds were just one among numerous engagement ring stones — sapphires, rubies, and emeralds were equally common choices.
In 1947, copywriter Frances Gerety wrote the line “A Diamond is Forever.” The campaign debuted in print the following year and has run in every De Beers engagement advertisement since. The effect was dramatic: the proportion of US brides receiving diamond engagement rings rose from approximately 10% in 1940 to 80% by 1990.
The campaign did not invent the diamond engagement ring — diamonds had been used in betrothal rings since the 15th century. What it achieved was making diamonds the expected choice rather than one option among many. The postwar wedding boom, driven by returning servicemen and Queen Elizabeth's 1947 engagement, also contributed to the shift.
For the alternative to the diamond tradition, see our guide to the rise of colourful engagement rings.
Why Do Antique Diamond Rings Look Different from Modern Ones?
Every antique diamond was cut by hand, and the cutting technology available shaped the stone's proportions and light performance. Old mine cut diamonds have higher crowns, smaller tables, and larger culets than modern brilliants — producing more fire (coloured flashes) and less brilliance (white light return). Old European cuts are rounder and brighter, serving as the direct predecessor to today's round brilliant.
These differences are not flaws. They reflect the materials and techniques available in each era, and many collectors specifically prefer the warmer, more individual sparkle of antique diamonds over the uniform brilliance of modern precision-cut stones. For a practical guide to evaluating antique diamonds, see our guide to choosing the perfect diamond ring, and for the full story of how diamonds were cut and set, see diamonds in antique rings.
The solitaire — the setting most associated with diamond engagement rings today — became fashionable after Tiffany introduced its six-prong setting in 1886. But Victorian and Edwardian engagement rings took many other forms: three-stone rings representing past, present, and future; five-stone boat rings; and cluster settings that made smaller diamonds appear larger. Browse our antique and vintage diamond rings to see these styles from every era, or explore our engagement rings to find a piece with the character that only age can provide.
Read more of our buyer's guides to antique and vintage rings for practical advice on choosing, sizing, and caring for an antique ring.
Frequently Asked Questions
When did diamond engagement rings become traditional?
The diamond engagement ring became the expected standard in the mid-20th century, driven by the De Beers “A Diamond is Forever” campaign launched in 1948. Before the campaign, only around 10% of US brides received a diamond ring. By 1990, that figure was 80%. Diamonds had been used in aristocratic betrothal rings since the 15th century, but the mass tradition is less than a century old.
What was the first diamond engagement ring?
GIA describes the 1477 ring from Archduke Maximilian of Austria to Mary of Burgundy as the earliest written record of a diamond used in an engagement ring. The ring reportedly featured flat-cut diamonds arranged in an M shape. However, a 1475 diamond ring documented in the Vatican Library and a c. 1417 English diamond ring with a French love inscription may be earlier examples.
What did engagement rings look like before diamonds?
Before the De Beers campaign made diamonds the default, engagement rings featured a wide range of gemstones chosen for their symbolic meanings. Sapphires represented loyalty, rubies passion, and emeralds enduring love. Victorian regard rings spelled words using the first letter of each stone. Gold bands, posy rings with inscribed messages, and fede rings with clasped hands were also common betrothal symbols.
How did the South African diamond discovery affect engagement rings?
The discovery of diamonds in South Africa in 1866–1867 increased world production more than tenfold within a decade. This made diamonds accessible to the middle classes for the first time — before Kimberley, only royalty and the very wealthy could afford diamond jewellery. The increased supply enabled diamonds to become a plausible engagement ring stone for ordinary buyers.
Why do antique diamond rings sparkle differently from modern ones?
Antique diamonds were cut by hand using the technology available in their era. Old mine cuts have higher crowns, smaller tables, and larger culets than modern brilliants, producing more fire (coloured flashes) and less brilliance (white light). These are not flaws — they are characteristics of their period. Many collectors prefer the warmer, more individual sparkle of antique cuts.
Did the De Beers campaign invent the diamond engagement ring?
The campaign did not invent the tradition — diamonds had been used in betrothal rings since at least the 15th century. What it achieved was making diamonds the expected choice. Before the 1940s, diamonds were one option among many. The “A Diamond is Forever” slogan, written by Frances Gerety in 1947 and launched in 1948, transformed a luxury into a cultural expectation.
Related Reading
- Diamonds in Antique Rings: Cuts, Colour & Character — the definitive guide to how diamonds were cut and set across the centuries
- The Rise of Colourful Engagement Rings — the alternative to the diamond tradition
- Victorian Rings: Romance, Mourning & Empire — the era when diamonds became accessible
- Read more of our buyer's guides to antique and vintage rings — the Buyer’s Guide pillar page