Two of the most beloved diamond shapes in the world — and two very different personalities. The round brilliant is the gold standard of sparkle; the cushion cut is romantic, vintage-inspired, and full of character. If you're trying to decide between them for an engagement ring or a piece of fine jewelry, this guide will help you make the choice with confidence.
The Round Brilliant: Unmatched Sparkle
The round brilliant is the most popular diamond shape in the world — and has been for over a century. Its 57 or 58 precisely arranged facets are engineered to maximize light return, producing the most brilliant, fiery, and scintillating diamond possible. At Vara, our round diamonds are cut to Hearts & Arrows standards — the top tier of round brilliant cutting, representing less than 1% of all round diamonds in the world.
Round diamonds are ideal if you want:
- Maximum brilliance and sparkle in any lighting
- A timeless, universally flattering shape
- The most studied and standardized cut grade
- A stone that pairs beautifully with virtually any setting style
The Cushion Cut: Romantic and Distinctive
The cushion cut — named for its pillow-like shape with rounded corners and larger facets — has been beloved since the 19th century. It produces a softer, more romantic sparkle than a round brilliant: less "crushed ice" brightness and more large, dramatic flashes of light. This gives cushion cuts a warm, dreamy quality that many buyers find irresistible.
Cushion cuts come in two main varieties: standard cushion (larger facets, chunkier sparkle pattern) and cushion modified brilliant (smaller facets, closer to the crushed-ice look of a round). When shopping for a cushion, look at the stone in video or in person to see which sparkle pattern appeals to you.
Cushion cuts are ideal if you want:
- A vintage-inspired, romantic aesthetic
- A softer, warmer sparkle with dramatic light flashes
- A shape that looks beautiful in halo and pavé settings
- Something distinctive that stands out from the round majority
Size: Which Looks Bigger?
Round diamonds are cut deep, concentrating weight toward the bottom of the stone. Cushion cuts are also relatively deep, but their square-ish outline means they can appear slightly smaller face-up than a round of the same carat weight. If visual size is a priority, a round or elongated shape like oval or pear will give you more face-up surface area per carat. Read our guide on why pear diamonds appear bigger for more on this topic.
Settings: What Works Best
Both shapes are versatile, but they each have settings where they truly shine. Round diamonds look stunning in virtually any setting — solitaire, halo, pavé, three-stone. Cushion cuts are particularly beautiful in halo settings, where the surrounding accent diamonds complement the cushion's soft corners, and in vintage-inspired settings with milgrain or filigree detail.
Explore all your options in our Engagement Ring Setting Styles Guide.
Price: Is There a Difference?
For lab-grown diamonds of equivalent carat weight and quality grades, round and cushion cuts are comparably priced. Rounds command a slight premium due to the precision required and the amount of rough diamond sacrificed to achieve the ideal proportions — but with lab-grown diamonds, this difference is far less pronounced than with mined stones.
The Bottom Line
Choose a round if you want the most brilliant, most timeless diamond with the highest sparkle ceiling. Choose a cushion if you want something with romantic character, a softer sparkle, and a vintage soul. Both are exceptional — it comes down to the personality of the ring you're building.
Browse our Engagement Ring Collection or visit Choose Your Diamond to compare shapes side by side and find the one that speaks to you.
