Why Choose a Princess Cut Engagement Ring?
The princess cut diamond is the most popular fancy-shaped diamond for engagement rings. Its clean, square silhouette and brilliant-cut faceting produce an exceptional amount of sparkle—rivaling the round brilliant in fire and brilliance while offering a distinctly modern, geometric aesthetic.
The princess cut was developed in the 1960s and quickly became a favorite for its contemporary look and excellent value. Because the square shape retains more of the rough diamond crystal during cutting (up to 80%, compared to about 50% for rounds), princess cuts typically cost 20–30% less per carat than rounds of comparable quality.
If you love clean lines, modern design, and maximum sparkle at an outstanding value, the princess cut is an ideal choice. It pairs beautifully with both classic and contemporary engagement ring settings.
Popular Settings for Princess Cut Engagement Rings
Solitaire settings are a perfect match for the princess cut's geometric personality. Four-prong settings that protect the corners while revealing the full face of the stone are the most popular. A solitaire allows the princess cut's brilliant sparkle and clean square lines to take center stage.
Channel-set bands complement the princess cut's straight edges naturally. Small princess-cut diamonds set flush into the band create a sleek, continuous line of sparkle from center stone to shank—ideal for active lifestyles since there are no raised prongs to snag.
Halo settings frame the square center stone with round accent diamonds, softening the geometric edges while adding maximum brilliance. A princess-cut halo is a show-stopping combination that maximizes the visual size of the center diamond.
Three-stone settings with a princess center and two smaller princess or trillion side stones create a powerful, symmetrical composition. Bezel settings wrap the princess cut in a protective metal frame for a contemporary, streamlined look.
How to Choose the Perfect Princess Cut Diamond
Proportions: The ideal princess cut is perfectly square, with a length-to-width ratio between 1.00 and 1.05. Ratios above 1.10 start to look noticeably rectangular. If you want a square look, stay at 1.05 or below.
Cut quality: GIA does not assign a formal cut grade to princess cuts, so focus on proportions. Look for a depth of 65–75% and a table of 67–75%. Good symmetry and polish are essential for light performance.
Color: Princess cuts hide body color relatively well thanks to their brilliant faceting. G–I color looks white in most settings. For yellow or rose gold, J color works nicely.
Clarity: VS2 or better is recommended. While the brilliant faceting helps mask some inclusions, avoid stones with inclusions near the corners—these areas are under the most stress from prongs and are more susceptible to durability issues if a significant inclusion is located there.
Corner protection: The four pointed corners of a princess cut are its most vulnerable areas. Always choose a setting with V-prongs or corner prongs that protect these points. This is the single most important setting consideration for princess cuts.
Frequently Asked Questions
Is a princess cut diamond as sparkly as a round?
Yes, very close. The princess cut uses brilliant-style faceting similar to a round diamond, producing excellent fire and scintillation. While a round brilliant is mathematically optimized for light return, a well-cut princess cut produces a nearly equivalent amount of sparkle with a distinctly different pattern—more angular and geometric. Most customers find that a princess cut's brilliance is on par with a round's in person.
Are princess cut diamonds a good value?
Princess cuts are one of the best values in diamond shapes. The cutting process retains about 80% of the rough crystal, compared to only 50% for rounds, which makes the per-carat cost 20 to 30% lower. Combined with the square shape's efficient face-up coverage, a princess cut gives you excellent visual presence for your budget.
What is the best ratio for a princess cut diamond?
For a perfectly square look, aim for a length-to-width ratio between 1.00 and 1.05. Anything up to 1.05 will appear square to the naked eye. Ratios above 1.10 start to look rectangular. If you actually prefer a slightly rectangular princess, that is a valid aesthetic choice—just be aware that most buyers are looking for a square stone.
Do princess cut diamonds chip easily?
The four pointed corners of a princess cut are more susceptible to chipping than rounded corners on shapes like oval or cushion. However, with proper setting design—specifically V-prongs or corner prongs that protect each point—a princess cut is perfectly durable for daily wear. We design all our princess cut settings with corner protection built in. Avoid wearing the ring during heavy manual work and the corners will stay intact.
What settings protect the corners of a princess cut?
V-prongs are the best option. They wrap around each corner point, shielding it from impact while still allowing light into the stone. Corner bezel settings enclose the corners in metal for maximum protection. Channel settings are also excellent since the diamond sits flush within the band, leaving no corners exposed. We always recommend settings with corner protection for princess cuts—it's the most important practical consideration for this shape.