The 4 carat Portuguese cut is one of the rarest and most legendarily extraordinary diamond choices available — combining an exceptional carat weight with an unparalleled 160+ facet arrangement that delivers a level of fire and brilliance at 4 carats that is breathtaking, legendary, and simply impossible to achieve with any other diamond cut at any size. At Variation, explore our certified collection of 4 carat Portuguese cut lab grown diamonds, IGI certified, conflict-free, and priced up to 80% less than natural diamonds.
About 4 Carat Portuguese Cut Lab Grown Diamonds
The 4 carat Portuguese cut lab grown diamond is one of the rarest and most extraordinary diamond combinations available anywhere in the world — pairing a truly exceptional and legendary carat weight with one of the rarest and most complex diamond cuts ever created. At 4 carats, the Portuguese cut's extraordinary 160+ facet arrangement reaches an entirely new and legendarily breathtaking level of visual magnificence — its complex facet pattern delivering a depth, fire, and brilliance across a substantially larger surface area than at any smaller size that is truly in a class entirely and incomparably of its own. At Variation, our IGI certified 4 carat Portuguese 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 Portuguese Cut Lab Grown Diamond?
At 4 carats, the Portuguese cut delivers a level of extraordinary brilliance and legendary visual magnificence that is breathtaking and impossible to achieve at any smaller size. Its 160+ facets — nearly triple the count of a standard round brilliant — interact with light across a dramatically larger surface area at 4 carats, creating a mesmerizing depth and complexity of fire and scintillation of legendary and breathtaking proportion that makes every other diamond cut appear simple by comparison at this extraordinary and exceptional size. For buyers who want a 4 carat diamond that achieves not only extraordinary size but reaches the absolute and undisputed pinnacle of diamond brilliance — a stone that creates a legendary and breathtaking impression from every angle and distance — the Portuguese cut at 4 carats is the definitive and incomparable choice.
- 160+ precisely arranged facets — delivering extraordinary brilliance across a larger surface at 4 carats
- Approximately 10.4mm face-up diameter — the same presence as a round brilliant with extraordinary additional brilliance
- Unmatched fire and scintillation — the most brilliant facet arrangement of any diamond cut at 4 carats
- 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 Portuguese cut diamond
How Big Is a 4 Carat Portuguese Cut Lab Grown Diamond?
A 4 carat Portuguese cut diamond measures approximately 10.4mm in diameter face-up — the same face-up size as a 4 carat round brilliant. While the Portuguese cut does not deliver additional face-up size compared to a round brilliant at 4 carats, it delivers something far more extraordinary and legendary at this exceptional size — an unparalleled additional depth and complexity of light performance across a significantly larger surface area that makes it appear more alive, more vibrant, and more brilliantly magnificent than any other 4 carat diamond available.
At 4 carats, the Portuguese cut's 160+ facets interact with light across a dramatically larger surface area than at any smaller size — creating a mesmerizing and legendarily breathtaking visual experience that is significantly more impactful and extraordinary at this exceptional size than any other diamond cut can achieve. Every angle of a 4 carat Portuguese cut delivers a breathtaking display of fire and brilliance of legendary proportion that is immediately and unmistakably extraordinary from any distance.
How to Choose the Best 4 Carat Portuguese Cut Lab Grown Diamond
Cut Precision Is Legendarily Critical at 4 Carats
At 4 carats, the precision of the Portuguese cut's 160+ facet arrangement is legendarily critical — more demanding than at any smaller size and absolutely non-negotiable. The stone's dramatically larger surface area at this exceptional and legendary size means that any deviation in facet alignment has an immediately and dramatically noticeable impact on the cut's legendary light performance that is clearly visible from any distance. Always choose stones with Excellent symmetry and Excellent or Very Good polish grades for a 4 carat Portuguese cut — cut precision at this legendary size is the single most critical factor and should never be compromised under any circumstances.
Color at 4 Carats
At 4 carats, the Portuguese cut's extraordinary facet arrangement interacts with color across a dramatically larger surface area than at any smaller size — making color grade critically more important at this legendary weight. D color is strongly recommended for white gold or platinum settings at 4 carats — the only grade that ensures a truly pure, colorless appearance of legendary beauty that allows the Portuguese cut's extraordinary 160+ facet brilliance to shine at its most breathtaking and magnificent at this exceptional size.
Clarity at 4 Carats
VVS1 clarity or higher is strongly recommended for a 4 carat Portuguese cut diamond — inclusions become critically more visible across the stone's dramatically larger surface area at this legendary size. The Portuguese cut's extraordinary brilliant facet pattern conceals inclusions better than any other cut even at 4 carats — but VVS1 eye-clean stones deliver the finest quality and most breathtaking visual beauty at this exceptional and legendary size. Always view in high-resolution video before purchasing to verify eye-cleanliness at this extraordinary size.
Why Buy 4 Carat Portuguese Cut Lab Grown Diamonds from Variation?
At Variation, we specialize exclusively in lab grown diamonds — and our 4 carat Portuguese cut collection represents the rarest and most extraordinarily brilliant stones in our entire collection — available at prices that make this legendary and exceptional size genuinely and remarkably attainable.
- IGI certified — every stone comes with a full IGI grading report
- 160+ facets — the most complex and brilliant facet arrangement available 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 Portuguese Cut Lab Grown Diamonds
Not sure about 4 carats? Explore our Portuguese 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 Portuguese 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 Cushion 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 Ashoka Cut
- 4 Carat Trillion Cut
- 4 Carat Hexagon Cut
Frequently Asked Questions
How many facets does a 4 carat Portuguese cut diamond have?
A Portuguese cut diamond features over 160 precisely arranged facets — nearly triple the facet count of a standard round brilliant cut's 57–58 facets. At 4 carats, this extraordinary facet arrangement interacts with light across a dramatically larger surface area than at any smaller size — delivering a depth, fire, and brilliance of breathtaking and legendary proportion that is significantly more impactful and visually extraordinary at this exceptional size than at any other carat weight.
How big is a 4 carat Portuguese cut lab grown diamond?
A 4 carat Portuguese cut diamond measures approximately 10.4mm in diameter face-up — the same face-up size as a 4 carat round brilliant. While it does not deliver additional face-up size, it delivers an unparalleled additional depth and complexity of light performance across a dramatically larger surface area at this legendary size that makes it appear more alive, more vibrant, and more brilliantly magnificent than any other 4 carat diamond available.
Is a 4 carat Portuguese cut lab grown diamond good for an engagement ring?
Yes — a 4 carat Portuguese cut engagement ring is the choice of those who demand the absolute and undisputed pinnacle of diamond brilliance at a truly legendary and exceptional size. Its extraordinary 160+ facet arrangement delivers a visual experience at 4 carats that is breathtaking in its magnificence and legendary in its impact — making it an unforgettable, deeply distinctive, and truly extraordinary choice for the most important purchase of your life. At up to 80% less than a natural diamond of the same quality, a 4 carat IGI certified lab grown Portuguese cut offers extraordinary value at this legendary size.
What is the difference between a 4 carat Portuguese cut and round cut lab grown diamond?
Both are round diamonds of approximately the same face-up size at 4 carats — approximately 10.4mm in diameter. The legendary difference is in their facet arrangement and light performance. A round brilliant features 57–58 facets delivering exceptional brilliance across the stone's 10.4mm surface — already the most brilliant standard cut available at this legendary size. A Portuguese cut features 160+ facets delivering an extraordinary additional depth and complexity of light across the same surface area at 4 carats that elevates brilliance to an entirely different, breathtaking, and legendary level — making it the most brilliantly magnificent diamond cut in existence at this exceptional and extraordinary size.
What color and clarity should I choose for a 4 carat Portuguese cut lab grown diamond?
At 4 carats, D color is strongly recommended for white gold or platinum settings — allowing the extraordinary brilliance of the 160+ facet arrangement to shine without any distraction across the stone's dramatically larger surface area at this legendary size. VVS1 clarity or higher is strongly recommended as inclusions become critically more visible at this exceptional size. 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 Portuguese cut lab grown diamonds above and find the stone that speaks to you. Questions? Our diamond experts are here to help.