The 4 carat cushion cut is one of the most romantic and legendary diamond choices available at a truly extraordinary size — combining an exceptional carat weight with the soft, rounded corners and distinctive brilliant character that has made the cushion cut one of the most beloved diamond shapes in the world for over two centuries. At 4 carats, the cushion cut reaches a level of romantic grandeur and visual magnificence that is simply breathtaking. At Variation, explore our certified collection of 4 carat cushion cut lab grown diamonds, IGI certified, conflict-free, and priced up to 80% less than natural diamonds.
About 4 Carat Cushion Cut Lab Grown Diamonds
The 4 carat cushion cut lab grown diamond is one of the most romantic and visually magnificent diamond combinations available — pairing a truly extraordinary and legendary carat weight with one of the most beloved and timeless diamond shapes in the world. At 4 carats, the cushion cut's distinctive soft corners, large open facets, and exceptional play of light reach a level of romantic grandeur and visual magnificence that is simply breathtaking and unlike anything achievable at smaller sizes — its warm, luminous character creating an extraordinary impression of legendary proportion that is immediately and powerfully recognizable from any angle and distance. At Variation, our IGI certified 4 carat cushion cut lab grown diamonds are available in D to F color and VVS1 to VS2 clarity — priced up to 80% less than an equivalent natural diamond.
Why Choose a 4 Carat Cushion Cut Lab Grown Diamond?
At 4 carats, the cushion cut delivers a level of romantic grandeur and visual magnificence that is truly breathtaking and legendary — its large, open facets and soft rounded corners creating a warm, luminous glow of extraordinary proportion across a significantly larger surface area than at any smaller size. The cushion cut's distinctive chunky or crushed ice facet patterns create a breathtaking play of light at 4 carats — delivering bold dramatic flashes or an intensely sparkling glittery appearance of legendary visual impact across a substantially more impressive and commanding surface at this exceptional size. For buyers who want a 4 carat diamond with genuine romantic character, timeless appeal, and legendary visual presence, the cushion cut is a deeply compelling and breathtaking choice of extraordinary proportion.
- 58 to 64 facets — delivering exceptional fire and a breathtaking play of light at 4 carats
- Approximately 9.0 x 9.0mm face-up size — romantic and breathtakingly commanding at 4 carats
- Chunky or crushed ice facet pattern — two distinctive looks at this legendary size
- IGI certified — every stone independently graded and verified
- D, E and F color — the three highest color grades available
- VVS1 to VS2 clarity — all eye-clean, all exceptional quality
- Up to 80% less than an equivalent natural 4 carat cushion cut diamond
How Big Is a 4 Carat Cushion Cut Lab Grown Diamond?
A 4 carat cushion cut diamond measures approximately 9.0 x 9.0mm face-up in its classic square form — significantly larger and more commanding than a 3 carat cushion cut at 8.0 x 8.0mm and considerably more breathtaking than at any smaller size. At this extraordinary and legendary size, the cushion cut's large open facets and soft rounded corners create a visually warm and magnificently commanding appearance that delivers a romantic and deeply breathtaking presence on any finger or setting of truly legendary proportion.
For buyers seeking a larger face-up appearance at 4 carats, a rectangular cushion cut with a length-to-width ratio of 1.10–1.20 faces up considerably larger than a square cushion — delivering more visual presence and a more elongated, dramatically commanding silhouette while retaining the cushion cut's signature romantic character and exceptional brilliance at this extraordinary and legendary carat weight.
How to Choose the Best 4 Carat Cushion Cut Lab Grown Diamond
Chunky vs Crushed Ice at 4 Carats
At 4 carats, the choice between chunky and crushed ice facet patterns has a dramatically more significant and breathtaking visual impact than at any smaller size. A chunky cushion at 4 carats produces bold, dramatic flashes of light of legendary visual impact across its substantially large surface area — delivering a level of brilliance that is immediately and breathtakingly magnificent at this extraordinary size. A crushed ice cushion at 4 carats produces an intensely glittery, sparkling appearance of legendary proportion — its smaller fragmented facets creating a breathtaking mesmerizing display of scintillation across the stone's substantially larger face-up surface at this exceptional size. At 4 carats, both patterns are extraordinarily and breathtakingly beautiful — always view the stone face-up in high-resolution video before purchasing to assess which pattern creates the most legendary visual experience at this extraordinary size.
Color at 4 Carats
At 4 carats, color is critically more visible in a cushion cut than at any smaller size — particularly in the chunky facet pattern where the larger open facets make color significantly more perceptible to the naked eye at this legendary size. D color is strongly recommended for white gold or platinum settings for a 4 carat cushion cut diamond to ensure a truly pure, colorless appearance of legendary beauty worthy of this extraordinary and exceptional size. E color is also an excellent choice offering outstanding value. For yellow or rose gold settings — which pair beautifully with the cushion cut's warm romantic character at this legendary size — F color delivers an outstanding result.
Clarity at 4 Carats
At 4 carats, clarity is critically more important for a cushion cut diamond than at any smaller size. VVS2 clarity or higher is strongly recommended — inclusions become significantly more visible at this extraordinary and legendary size. The chunky facet pattern can make inclusions slightly more visible than a round brilliant at 4 carats — making VVS2 or higher the recommended choice for the finest quality at this exceptional size. For the absolute pinnacle of quality at 4 carats, VVS1 in D color represents the finest stones in our collection.
Why Buy 4 Carat Cushion Cut Lab Grown Diamonds from Variation?
At Variation, we specialize exclusively in lab grown diamonds — and our 4 carat cushion cut collection reflects our commitment to quality, ethics, and exceptional value at this extraordinary and legendary size.
- IGI certified — every stone comes with a full IGI grading report
- Chunky and crushed ice patterns available — both distinctive cushion cut styles in stock at 4 carats
- D, E and F color only — the highest color grades available
- VVS1 to VS2 clarity — all eye-clean, all exceptional quality
- Conflict-free & ethically sourced — always
- Priced up to 80% less than equivalent natural diamonds
Explore Other Sizes in Cushion Cut Lab Grown Diamonds
Not sure about 4 carats? Explore our cushion cut lab grown diamonds in other carat weights — all IGI certified, conflict-free, and priced up to 80% less than natural diamonds.
Explore Other Shapes in 4 Carat Lab Grown Diamonds
Not sure about cushion cut? Explore our 4 carat lab grown diamonds in other shapes — each with its own unique character, brilliance, and appeal.
- 4 Carat Round Cut
- 4 Carat Oval Cut
- 4 Carat Emerald Cut
- 4 Carat Princess Cut
- 4 Carat Pear Cut
- 4 Carat Radiant Cut
- 4 Carat Marquise Cut
- 4 Carat Heart Cut
- 4 Carat Portuguese Cut
- 4 Carat Ashoka Cut
- 4 Carat Trillion Cut
- 4 Carat Hexagon Cut
Frequently Asked Questions
How big is a 4 carat cushion cut lab grown diamond?
A 4 carat cushion cut diamond measures approximately 9.0 x 9.0mm face-up in its classic square form — significantly larger and more commanding than a 3 carat cushion cut at 8.0 x 8.0mm. A rectangular cushion cut with a length-to-width ratio of 1.10–1.20 faces up considerably larger — delivering more visual presence and a more elongated, dramatically commanding silhouette at this extraordinary and legendary carat weight.
What is the difference between a chunky and crushed ice cushion cut at 4 carats?
At 4 carats, the difference between chunky and crushed ice facet patterns is breathtakingly and dramatically more visible than at any smaller size. A chunky cushion produces bold, dramatic flashes of light of legendary visual impact across its substantially large surface area at 4 carats. A crushed ice cushion produces an intensely glittery, sparkling appearance of legendary proportion across the stone's substantially larger face-up surface. Both are extraordinarily and breathtakingly beautiful at 4 carats — always view in high-resolution video to assess which pattern suits your preference at this legendary size.
Is a 4 carat cushion cut lab grown diamond good for an engagement ring?
Yes — a 4 carat cushion cut engagement ring is a truly extraordinary and deeply romantic choice at this legendary size. Its romantic soft corners, timeless appeal, and breathtaking visual grandeur of legendary proportion at 4 carats make it one of the most meaningful and unforgettable engagement ring choices available. At up to 80% less than a natural diamond of the same quality, a 4 carat IGI certified lab grown cushion cut offers extraordinary value at this rare and legendary size.
What is the difference between a 4 carat cushion cut and round cut lab grown diamond?
Both deliver exceptional brilliance at 4 carats but they differ significantly in character and visual impact. A 4 carat round cut measures 10.4mm in diameter — perfectly symmetrical and delivering the maximum brilliance of any diamond cut at this legendary size. A 4 carat cushion cut measures approximately 9.0 x 9.0mm — delivering a warmer, more romantic sparkle with a soft square form and distinctive cushion character of breathtaking grandeur. The round cut delivers more brilliance; the cushion cut delivers more romantic character and a deeper, more complex play of light of legendary visual impact at this extraordinary size.
What color and clarity should I choose for a 4 carat cushion cut lab grown diamond?
At 4 carats, D color is strongly recommended for white gold or platinum settings as color becomes critically more visible at this legendary size. VVS2 clarity or higher is strongly recommended — VVS1 is ideal for the finest quality at this extraordinary size. For yellow or rose gold settings, E–F color pairs beautifully. All diamonds at Variation are available in D, E and F color grades and our experts can guide you to the finest quality at 4 carats.
Explore our full collection of 4 carat cushion cut lab grown diamonds above and find the stone that speaks to you. Questions? Our diamond experts are here to help.