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Diamond Engagement Rings: Why Have They Become a Classic?

Published: 2025-01-27
Edited: 2026-11-10
Airidas Ulevičius
Airidas Ulevičius
Founder and Director of Auksinė svajonė, Master Jeweller

Diamond engagement rings have become a classic for several reasons: diamonds are extremely scratch-resistant; when well-cut, they interact beautifully with light; and centuries of symbolism, combined with 20th-century advertising, have closely linked them to a lifelong commitment. However, a diamond is not a mandatory requirement for an engagement ring—it is just one of many possible choices.

In Short: Why Is a Diamond Often Chosen for an Engagement Ring?

Reason Why is it important?
High hardness A diamond is resistant to everyday scratches
Brilliance A well-cut diamond effectively reflects light
Long-lasting tradition Diamond engagement rings have been known in Europe since the 15th century
Symbolism Strength and durability have become a metaphor for commitment
20th-Century Marketing Advertising strongly associated diamonds with engagements
Design Versatility Diamonds suit both classic and modern rings
Wide Selection You can choose from different shapes, sizes, colors, and settings

Have engagement rings always featured diamonds?

No, the history of engagement rings—or rings serving as engagement rings—is much older than the tradition of diamond rings. In Roman times, rings associated with engagement were used, including simple iron bands. In the Middle Ages, colored gemstones also appeared in engagement jewelry, such as:

  • sapphires;
  • rubies;
  • and other stones valued at the time.

When did the first diamond engagement rings appear?

One of the earliest well-documented examples dates back to 1477—when Archduke Maximilian of Austria was advised to choose a diamond ring to mark his engagement to Mary of Burgundy. This story is often considered one of the most important milestones in the history of diamond engagement rings.

However, in the 15th century, such jewelry was certainly not a common choice. Diamonds:

  • were difficult to obtain;
  • were expensive;
  • and were mostly the preserve of the nobility and the wealthiest segments of society.

Therefore, there are still several centuries of history separating the 15th-century nobleman’s ring from today’s jewelry stores.

The 19th century transformed the diamond market

A major turning point occurred in the second half of the 19th century with the discovery of significant diamond deposits in South Africa. This transformed:

  • the supply of diamonds;
  • the scale of the diamond trade;
  • the jewelry industry.

In 1888, De Beers Consolidated Mines was founded (around the same time, diamond cutting and setting techniques were also improving).

Why is the 1886 Tiffany Setting significant?

Introduced in 1886, the six-prong Tiffany Setting helped shape the aesthetic of the solitaire engagement ring that is so familiar today. The center diamond was raised above the band and held in place by thin prongs. This design:

  • allowed more of the diamond to be visible;
  • helped reveal its play of light;
  • made the stone itself the focal point of the entire ring.

This principle is still used today in various contemporary interpretations.

Why has the diamond become a symbol of lasting love?

This symbolism is quite simple to understand—a diamond is:

  • extremely hard;
  • durable;
  • in the case of rare, high-quality specimens—valuable;
  • and, when properly cared for, can be passed down to future generations.

Therefore, in jewelry, its physical properties have become a metaphor for a strong and lasting bond.

How did the diamond become synonymous with engagement?

Tradition alone does not explain why the diamond ring became so firmly established in popular culture in the 20th century—advertising played a huge role:

  • In 1939, De Beers launched a large-scale diamond advertising campaign in the U.S.;
  • In 1947, Frances Gerety, a copywriter at the advertising agency N. W. Ayer, coined the phrase “A Diamond Is Forever.” Her idea was incredibly powerful—the physical durability of a diamond was linked to the promise of lasting love and marriage. It was precisely this connection that became one of the most successful marketing narratives of the 20th century.

Why are a diamond’s physical properties suitable for an everyday ring?

An engagement ring is typically worn very often, so the practicality of the center stone is important. A diamond rates 10 on the Mohs hardness scale—it is the hardest natural mineral in terms of scratch resistance, making it highly resistant to:

  • everyday surface wear;
  • scratches;
  • contact with many other materials.

Is a diamond unbreakable?

No—hardness is not the same as resistance to breaking. A diamond resists scratches very well, but a strong impact along a certain direction of the crystal can chip, crack, or even split it. Pointed areas of princess, marquise, pear, and heart-shaped cuts can be particularly vulnerable.

A good engagement ring features not only a beautiful diamond but also a setting that properly protects it.

Why does a diamond sparkle so brightly?

A diamond’s appearance is determined not only by the material itself—the cut is also very important. Well-designed diamond facets control the light entering the stone and create:

  • brilliance;
  • colored flashes of light—fire;
  • a shimmer as the stone moves—scintillation.

Therefore, it is incorrect to say that a diamond’s clarity alone determines the majority of its price or brilliance—it is just one of the 4Cs. If you’d like to learn more, read the guide to buying diamonds.

Does an engagement ring have to have a diamond?

No, this is one of the most important aspects of modern choice. An engagement ring can be:

  • with a diamond;
  • with a sapphire;
  • with a ruby;
  • with an emerald;
  • with another suitable gemstone;
  • or even without a center stone.

For example, sapphire also has a very high hardness—9 on the Mohs scale—making it exceptionally practical for an everyday ring.

When is a diamond a good choice?

A diamond is a particularly logical choice if the person:

  • prefers classic jewelry;
  • wants plenty of light and sparkle;
  • plans to wear the ring every day;
  • prefers colorless or neutral jewelry;
  • appreciates the traditional aesthetic of an engagement ring.

When should you consider another gemstone?

A colored gemstone may be a better choice if your partner:

  • regularly wears colored jewelry;
  • clearly prefers sapphires, rubies, or emeralds;
  • doesn’t want a traditional colorless ring;
  • is looking for a specific color;
  • wants a custom design.

Frequently Asked Questions

Why are diamonds the most common choice for engagement rings?

Diamonds are extremely scratch-resistant; when well-cut, they exhibit a brilliant play of light; and historical tradition and 20th-century advertising have closely linked them to engagements and long-term commitment.

When did the first diamond engagement ring appear?

One of the earliest well-documented examples dates back to 1477, when Archduke Maximilian of Austria was advised to choose a ring with a diamond for his engagement to Mary of Burgundy.

Is a diamond the most durable stone for a ring?

A diamond is the hardest natural mineral in terms of scratch resistance—a 10 on the Mohs scale. However, it is not unbreakable and can shatter from a strong impact.

Does an engagement ring have to have a diamond?

No. Sapphires, rubies, and other carefully selected gemstones can also be used for engagement rings. The most important thing is that the choice matches the wearer’s taste and lifestyle.

Which is more important—the size or the quality of the diamond?

One criterion alone isn’t enough. It’s best to evaluate the cut, color, clarity, carat weight, dimensions, and the overall design of the ring together.

The diamond has become a classic, but the choice is yours

Engagement rings with diamonds have a long history—their popularity has been shaped by jewelry tradition, the physical properties of diamonds, technological advances, and one of the most influential advertising campaigns in history.

Today, the diamond solitaire seems to many to be an almost self-evident symbol of engagement, but a good engagement ring isn’t the one that best fits tradition—it has to suit the person who will wear it.

If a diamond is exactly what they’re looking for, you can browse diamond engagement rings and choose based on design, shape, and everyday comfort.

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