Among the many diamond shapes available today, the cushion cut occupies a singular place — romantic in its softness, brilliant in its fire, and deeply rooted in the history of fine jewelry. Whether you’re selecting an engagement ring or adding a meaningful piece to your collection, understanding what makes cushion diamond cuts so enduring will help you choose with confidence and clarity.

A Shape With History

The cushion cut is one of the oldest diamond shapes still in wide use. Its roots trace back to the early 19th century, when it was known as the “old mine cut” — a style developed before modern cutting technology existed, shaped largely by hand and designed to catch candlelight. The characteristic square-to-rectangular outline with softly rounded corners gave the stone a pillow-like appearance, which is how it earned its name.

Over the decades, lapidaries refined the proportions, improved symmetry, and adjusted facet arrangements to take advantage of advances in cutting equipment. The result is the modern cushion cut: a shape that honors its vintage origins while delivering the kind of brilliance and depth today’s buyers expect.

How Cushion Cuts Are Graded and What to Look For

Like all diamonds, cushion cuts are evaluated on the traditional four Cs — cut, color, clarity, and carat weight. However, a few characteristics are especially worth understanding when you’re considering this particular shape:

• Cut quality and facet arrangement: Cushion cuts come in two primary facet styles — the “chunky” or standard cushion, which tends to produce larger, glassy light patterns, and the “crushed ice” cushion, which breaks light into smaller, more scattered reflections. Neither is objectively better; it comes down to personal preference.
• Length-to-width ratio: A ratio close to 1.00 produces a nearly square cushion. Ratios between 1.10 and 1.20 yield a more rectangular, elongated look. Both are popular, and the right choice depends on the wearer’s hand shape and aesthetic taste.
• Color retention: Because cushion cuts have deeper pavilions and larger facets than some other shapes, they can retain color more visibly than brilliant round cuts. If you prefer a bright white appearance, you may want to consider a slightly higher color grade — particularly in larger carat weights.
• Clarity visibility: Inclusions can be more visible in cushion cuts than in shapes with more facets to mask them. A thorough review of the stone’s clarity grading report is always worthwhile.

Natural vs. Lab-Grown Cushion Diamonds

One of the most common questions we hear at M.S. Brown Jewelers is whether to choose a natural or lab-grown diamond in a cushion cut. Both are real diamonds — chemically, physically, and optically identical. The difference lies in their origin: natural diamonds form over billions of years beneath the earth’s surface, while lab-grown diamonds are created in controlled environments using processes that replicate those geological conditions in a fraction of the time.

Lab-grown cushion diamonds have made this beloved shape more accessible at a range of price points, and they carry the same grading standards applied to natural stones. Natural cushion diamonds, particularly those with antique proportions, appeal to buyers who value geological rarity and provenance. We’re happy to walk you through both options side by side so you can make the choice that feels right for you — not just financially, but personally.

Setting Styles That Complement a Cushion Cut

The cushion cut is remarkably versatile in terms of setting design. Its soft corners and generous surface area pair well with a range of styles:

• Halo settings are particularly popular with cushion cuts. A border of smaller round diamonds amplifies the center stone’s apparent size and adds a vintage-inspired elegance that suits the shape’s heritage.
• Solitaire settings let the cushion’s natural character speak for itself — an excellent choice if you want something timeless and uncluttered.
• Three-stone settings pair a cushion center stone with side stones for symbolic meaning and added brilliance.
• Pavé or channel-set bands complement the cushion’s warmth without competing with it.

If you have a specific vision, our custom design service can bring it to life. We work with customers along the Jersey Shore and beyond to create pieces built around the exact stone and setting combination they have in mind.

Cushion Cuts in Engagement Rings and Beyond

While cushion cut diamonds are most often associated with engagement rings, they appear beautifully in a range of fine jewelry — pendants, earrings, and anniversary pieces among them. The shape’s warmth and brilliance make it well suited to yellow and rose gold settings, where its soft outline echoes the warmth of the metal. It also reads as clean and modern in platinum or white gold.

For customers who visit our Cape May Court House or Wildwood showrooms, we regularly carry cushion cut diamonds in a variety of shapes, sizes, and origins, and we’re always glad to source specific stones on request. Seeing a cushion cut diamond in person — under different lighting conditions, in different settings — makes a significant difference in understanding what appeals to you.

Frequently Asked Questions

What is the difference between a cushion cut and a princess cut diamond?

Both are square or rectangular shapes, but they differ meaningfully in character. A princess cut has sharp, pointed corners and a more angular, geometric appearance. A cushion cut has rounded corners and a softer outline, giving it a warmer, more romantic feel. The facet structures also differ, which affects how each shape handles light — princess cuts tend toward sharp, directional brilliance, while cushion cuts produce broader, softer flashes.

Are cushion cut diamonds less brilliant than round diamonds?

Round brilliant diamonds are cut specifically to maximize light return, and they remain the benchmark for brilliance. Cushion cuts are highly brilliant in their own right, but they tend to emphasize fire — the colorful dispersion of light — more than a round cut does. Many people find this quality especially beautiful, particularly in candlelit or warm indoor settings.

How do I know if a cushion cut diamond is well cut?

Unlike round diamonds, cushion cuts do not have a standardized cut grade on grading reports from laboratories like GIA. That makes it especially important to view the stone in person or examine high-quality imaging. A well-cut cushion will show even light distribution, no dark “bow-tie” shadow across the center, and good symmetry. An experienced jeweler can help you evaluate these qualities before you commit.

Can a cushion cut diamond be resized or reset later?

Yes. The cushion cut’s flat base and proportions make it compatible with a wide range of settings, and resetting a cushion diamond is a common and straightforward service. Whether you’re updating an inherited piece or refreshing a style, we offer full jewelry repair, resetting, and custom design services at both our Wildwood and Cape May Court House locations.

If you’re drawn to the cushion cut — or simply curious about whether it might be the right choice — we’d love to help. Stop by either of our M.S. Brown Jewelers showrooms, or give us a call. There’s no pressure and no rush. We believe the best jewelry decisions come from being genuinely informed, and we’re here to make sure that’s exactly how you feel.