Old Mine Cushion Diamond vs. Brilliant Cushion Diamond: Which Should You Choose for Your Ring?

If you're shopping for a cushion-cut diamond, you've probably come across two terms that sound almost identical: Old Mine Cushion Diamond and Brilliant Cushion Diamond. Since both share the same soft, pillow-like outline, it's easy to assume they're simply different names for the same cut.

They're not.

While these diamonds belong to the same cushion family, they were created in different eras with completely different goals. An Old Mine Cushion Cut Diamond is inspired by the hand-cut diamonds of the 18th and 19th centuries, valued for their chunky facets, colourful fire and antique charm. A Brilliant Cushion Diamond is a modern cut engineered to maximize white brilliance and create a brighter, more consistent sparkle.

Neither cut is objectively better. They simply offer different personalities. One celebrates the romance of historic diamond cutting, while the other embraces modern precision and light performance.

In this guide, we'll compare the key differences between Old Mine Cushion and Brilliant Cushion cut diamonds, including their facet patterns, sparkle, proportions and overall appearance, so you can decide which one best suits your style.

Old Mine Cushion Diamond vs. Brilliant Cushion Diamond: Quick Comparison

Choose an Old Mine Cushion Diamond if you love vintage-inspired jewelry, chunky facets, and bold flashes of colorful fire.

Choose a Brilliant Cushion Diamond if you prefer modern sparkle, crisp brilliance, and a brighter overall appearance.

Before making a decision, many buyers look for real-world experiences alongside expert advice. This Reddit discussion offers a range of opinions from people comparing Old Mine Cushion and Brilliant Cushion diamonds:

See what buyers are saying: Opinions old mine/antique vs brilliant? Should I keep looking?

What Is an Old Mine Cushion Diamond?

An Old Mine Cushion Cut Diamond is one of the earliest cushion-shaped diamond cuts, inspired by the hand-cut diamonds crafted during the Georgian and Victorian eras.

Unlike today's precision-cut diamonds, Old Mine Cushions were created long before computer modeling or laser cutting. Diamond cutters relied entirely on experience and craftsmanship, shaping each stone by hand to maximize its beauty under candlelight rather than bright electric lighting.

This historic cutting style gives the antique cushion its distinctive appearance.

Typical characteristics include the following:

• Large, chunky facets
• High crown
• Small table
• Deep pavilion
• Open culet
• Soft pillow-shaped outline

Together, these features create broad flashes of rainbow fire instead of the fast, scattered sparkle commonly seen in modern diamonds.

Although genuine antique old mine cut diamonds are rare, modern cutters now recreate the same faceting and proportions using advanced cutting techniques. This allows buyers to enjoy the antique look with the consistency and durability expected from a newly cut diamond.

What Is a Brilliant Cushion Diamond?

A Brilliant Cushion Diamond is the modern evolution of the traditional cushion cut.

As diamond-cutting technology advanced during the twentieth century, cutters began optimizing diamonds for maximum light return rather than preserving antique proportions.

The result was the Brilliant Cushion.

Compared with an Old Mine Cushion, it typically features

• A larger table
• A lower crown
• A closed culet
• A brilliant facet arrangement
• Greater optical symmetry

These design changes allow more white light to return through the top of the diamond, creating the lively sparkle that many buyers associate with modern engagement rings.

Instead of producing large flashes of color, Modern Cushion Cut Diamonds generate numerous smaller reflections that appear bright from almost every angle.

If you prefer a clean, contemporary look with consistent brilliance throughout the day, this style may be the better choice.

Why Do They Look So Different?

Although both diamonds share the same cushion outline, they were designed for completely different lighting environments.

Old Mine Cushion Diamonds originated during a time when homes were illuminated by candles, fireplaces, and oil lamps. Under these softer light sources, larger facets produced bold flashes of colored fire that remained visible even in dim settings.

Modern Brilliant Cushion Diamonds were developed after advances in diamond cutting and lighting technology. Instead of prioritizing colorful fire, cutters focused on returning as much white light as possible, creating the bright sparkle that has become popular in contemporary jewelry.

This difference in cutting philosophy is why two cushion-shaped diamonds can look so different despite sharing the same basic outline.

The Biggest Differences Between Old Mine Cushion and Brilliant Cushion Diamonds

1. Facet Pattern

The facet pattern is the biggest reason these diamonds behave differently.

An Old Mine Cushion Diamond typically features around 58 large, chunky facets. Because each facet is broader, the diamond reflects light in larger, slower flashes.

A Brilliant Cushion Diamond also uses approximately 58 facets, but they're arranged in a modern brilliant pattern designed to divide light into many smaller reflections. This creates brighter, more evenly distributed sparkle across the entire stone.

Simply put:

• Old Mine Cushion: Larger flashes with more contrast.
• Brilliant Cushion: More reflections with greater overall brightness.

2. Sparkle

Many buyers ask:

Which sparkles more?

The better question is:

How do they sparkle?

An Old Mine Cushion Diamond produces bold flashes of colored light, known as "fire." As the diamond moves, individual facets catch the light one at a time, creating dramatic bursts of color that many collectors describe as warm and romantic.

A Brilliant Cushion Diamond focuses on brilliance instead. Rather than producing large flashes, it reflects a greater amount of white light through numerous smaller reflections, giving the diamond a consistently bright appearance.

Neither style is better.

Some buyers love the slow, dramatic flashes of an vintage cushion cut diamond, while others prefer the lively sparkle of a Brilliant Cushion.

3. Fire vs. Brilliance

One of the biggest misconceptions is that fire and brilliance mean the same thing.

They don't.

Fire refers to the colored flashes created when light disperses into the colors of the rainbow.

Brilliance refers to the amount of white light reflected back to your eye.

Old Mine Cushion Diamonds generally emphasize fire.

Brilliant Cushion Diamonds generally emphasize brilliance.

Understanding this difference helps explain why two diamonds can appear equally beautiful while producing completely different visual effects.

Collector Perspective

If you're interested in the finer details of cushion-cut diamonds, experienced collectors often compare the optical patterns created by different facet arrangements. One of the most popular discussions explores how an Old Mine Brilliant differs from a modern Cushion Brilliant and why features like the Maltese Cross are so highly valued by antique diamond enthusiasts.

PriceScope Discussion: Old Mine Brilliant Versus Cushion Brilliant / GOTTA HAVE THE MALTESE CROSS!!

4. Crown, Table and Culet

Three structural features give these diamonds their distinctive personalities.

Crown

Old Mine Cushion Diamonds usually have a higher crown, helping produce stronger flashes of colorful fire.

Brilliant Cushion Cut Diamonds typically feature a lower crown that increases overall brightness.

Table

Old Mine Cushions have a smaller table, allowing larger crown facets to create their signature chunky appearance.

Brilliant Cushions have a larger table, helping maximize white light return.

Culet

One of the easiest ways to recognize an Old Mine Cushion is its open culet.

Instead of ending in a sharp point, the bottom of the diamond finishes with a small polished facet that may appear as a tiny window when viewed from above.

Modern Brilliant Cushion Diamonds almost always have a closed culet, creating a cleaner, more symmetrical appearance.

Which Diamond Looks Bigger?

Carat weight doesn't always tell the full story. Two diamonds with the same weight can appear noticeably different once they're set in a ring.

In many cases, an Old Mine Cushion Diamond can appear slightly larger because its broad facet pattern naturally draws the eye across the stone. Elongated Old Mine Cushions, in particular, often create the illusion of greater finger coverage.

If you're deciding between proportions rather than cut style, our guide on Old Mine Elongated vs. Old Mine Square Diamonds explains how each shape affects finger coverage, overall appearance and light performance. 

A Brilliant Cushion Diamond is typically cut to optimize light performance rather than face-up spread. Depending on its proportions, more of its weight may sit below the girdle, which can make it appear marginally smaller than an equally weighted Old Mine Cushion.

That said, there are exceptions. Rather than comparing carat weight alone, always check the diamond's length, width, and overall measurements to understand how large it will actually look once worn.

Which Diamond Hides Color Better?

Color is one of the biggest factors affecting a diamond's appearance and price. Interestingly, the way a diamond is cut can influence how noticeable its color appears.

Old Mine Cushion Diamonds generally handle warmer color grades well. Their smaller table, higher crown, and chunky facets create stronger contrast between light and shadow, allowing subtle warmth to blend naturally into the diamond's vintage character. Many buyers intentionally pair slightly warmer Old Mine Cushions with yellow or rose gold to enhance this look.

Brilliant Cushion Diamonds, with their larger table and increased white light return, can reveal body color a little more easily. Buyers who prefer a crisp, icy-white appearance often choose higher color grades for modern brilliant cuts.

Neither approach is better. If you love the warmth and character of antique-inspired jewelry, an Old Mine Cushion can look beautiful in slightly lower color grades. If your goal is a bright, colorless appearance, a Brilliant Cushion may suit you better with a higher color grade.

How They Perform in Different Lighting

Lighting has a huge impact on how every diamond looks, and it's one of the most overlooked aspects when comparing cushion cuts.

In daylight

Both diamonds perform beautifully, but in different ways.

An Old Mine Cushion Diamond displays bold, colorful flashes that are easy to distinguish as the stone moves. A Brilliant Cushion Diamond produces a brighter, more evenly distributed white sparkle.

In warm indoor lighting

This is where many Old Mine Cushions shine. Their large facets continue producing dramatic flashes even under softer light, creating the warm glow that antique diamonds are known for.

Brilliant Cushion Diamonds remain bright indoors but focus more on brilliance than colorful fire.

Under jewellery store spotlights

Almost every diamond looks spectacular under showroom lighting because it's specifically designed to maximize sparkle.

Before making a purchase, ask to view the diamond in natural daylight or typical indoor lighting. This gives you a much more realistic idea of how it will perform in everyday life.

Which Ring Setting Works Best?

Both cuts work beautifully in engagement rings, but they naturally complement different styles.

Old Mine Cushion Diamonds pair well with:

• Solitaire settings
• Bezel and half-bezel settings
• Three-stone rings
• Cathedral settings
• Yellow or rose gold

These settings are considered some of the Best Settings for Old Mine Cushion Cut Diamonds, as they highlight the stone's antique-inspired proportions and chunky facet pattern. 

Brilliant Cushion Diamonds pair well with:

• Four-prong solitaires
• Halo settings
• Hidden halo designs
• Pavé bands
• White gold or platinum

Their clean symmetry and bright sparkle suit contemporary engagement ring styles particularly well.

Which Should You Choose?

Both diamonds are excellent choices, but they're designed for different tastes.

Choose an Old Mine Cushion Cut Diamond Ring if...

You find yourself admiring vintage jewelry, heirloom pieces, or designs that don't look like everyone else's. An Old Mine Cushion isn't about producing the brightest sparkle; it's about creating bold flashes of light and a character that feels unique every time you turn your hand.

Choose a Modern Cushion Cut Diamond Ring if...

You love a clean, modern aesthetic and want your diamond to sparkle from every angle. With its modern facet pattern, a brilliant cushion delivers the bright, lively brilliance that many people picture when they think of a classic engagement ring.

In the end, this isn't a choice between an old cut and a modern cut. It's a choice between two completely different diamond personalities.

If you've decided that an Old Mine Cushion Diamond is the right choice, browse our curated selection of the Top 10 Old Mine Cushion Cut Diamond Engagement Rings for inspiration across solitaire, bezel, three-stone, and vintage-inspired designs. 

Final Verdict

Although they share the same cushion outline, Old Mine Cushion Diamonds and Brilliant Cushion Diamonds deliver completely different visual experiences.

An Old Mine Cushion celebrates the beauty of historic diamond cutting with chunky facets, a high crown, an open culet and broad flashes of colorful fire. It offers a distinctive vintage-inspired look that stands apart from modern cuts.

A Brilliant Cushion Diamond takes a different approach. Designed with modern cutting techniques, it prioritizes white brilliance, optical symmetry, and lively sparkle, making it a popular choice for contemporary engagement rings.

If you're drawn to antique character and bold flashes of light, an Old Cut Cushion Diamond is likely to feel more special. If your priority is bright, consistent brilliance, a Brilliant Cushion Diamond may be the better fit.

The most important thing is to compare both cuts in different lighting and choose the one that reflects your personal style rather than simply following trends.

Frequently Asked Questions

Is an Old Mine Cushion Diamond the same as a Brilliant Cushion Diamond?

No. An Old Mine Cushion Diamond is an antique-inspired cut with chunky facets, a high crown and an open culet that emphasizes colorful fire. A Brilliant Cushion Diamond is a modern cut designed to maximize white brilliance and consistent sparkle.

Which cushion diamond sparkles more?

Both diamonds sparkle beautifully, but in different ways. Old Mine Cushion Diamonds produce larger flashes of colorful fire, while Brilliant Cushion Diamonds create brighter white brilliance through many smaller reflections.

Does an Old Mine Cushion Diamond look bigger?

It can. Many Old Mine Cushions, especially elongated shapes, create the impression of a larger face-up appearance because of their broad facet pattern and proportions. However, actual size depends on the individual diamond's measurements.

Which cut is better for an engagement ring?

Neither cut is universally better. Choose an Old Mine Cushion if you prefer vintage-inspired designs and bold fire. Choose a Brilliant Cushion if you want bright, modern sparkle and a contemporary appearance.