Princess Cut Lab Grown Diamond Engagement Rings

Princess Lab Grown Diamond Engagement Rings: The Center Stone Sets the Price

Every one of the 580 or more princess lab grown diamond engagement ring designs here is a mounting shown around a center stone that you choose yourself. That stone comes from 61,693 lab princess diamonds in stock today, 53,256 of them with 360 HD video, and it accounts for most of what you pay. After the current savings a lab princess starts at $120; in the 0.90 to 1.10 carat band, the one carat benchmark, the floor is $395 and the median $697. Put a 1.8 carat lab princess in place, as the page does today, and the Linda comfort fit solitaire comes to $1,475, the Bellora hidden halo to $2,255 and the Vivian solitaire to $1,805, all with the stone included and all in 14K white gold. We pulled these numbers from stock on October 19, 2026 and we refresh them on a regular schedule.

Among square shapes the princess is the brilliant cut, with four sharp corners and more sparkle than any other square outline, and it is the shape most often chosen by people who want a modern geometric ring. Lab grown princess centers are plentiful and cheap even at larger sizes, so for a lab grown princess engagement ring the grade matters less than how large you go and how the mounting protects those four corners.

Lab Grown Princess Centers by Carat Band

The table below sorts all 61,693 lab princesses in our inventory into carat bands. The rows add back up to that total, and the fullest of them is 1.50 to 1.89 ct with 10,825 stones in it. Medians come to $697 between 0.90 and 1.10 carats, $1,572 between 1.90 and 2.10 and $2,656 between 2.90 and 3.10. Choose a design from the grid and you pay for stone and metalwork together; swap in another stone and the total follows it. Rows that match one of our ring pages are linked.

61,693 lab princess centers sorted into carat bands, at today's prices, October 19, 2026

Which Color and Clarity for a Princess Center

In the 0.90 to 1.10 carat band, a D color lab princess starts at $480 with clarity fixed at VS2 or better, and a G in that row starts at $420. Color, then, is not where a lab grown princess engagement ring saves or spends, and 98 percent of the stones on the color ladder are D to F in any case. Clarity behaves much the same from the other side: with color fixed at D to F, a VS1 starts at $405 and a VVS2 at $480. For a lab princess center the sensible buy is VS1 or better in D to F, and whatever you would have put toward a higher grade can go into weight and into the mounting itself.

Lab princesses at 0.90 to 1.10 ct: lowest price for each color with clarity at VS2 or better (10,395 stones), then for each clarity with color at D to F (10,181 stones)

Setting a Natural Princess Instead

Put a natural princess into the same mounting and a one carat G color VS1 center starts at $1,255 against $475 for lab grown, which reshapes the budget for the whole ring. Across the whole of the one carat band, medians run $1,706 for natural and $697 for lab. What you pay for in the natural stone is scarcity and, nearly always, a GIA report, since 27,528 of the 28,922 natural princesses in stock carry one. Choose the lab stone instead and you get more weight and a higher grade for the same money. The princess natural diamond engagement rings page sets the same designs with natural centers.

Princess at 0.90 to 1.10 ct, one grade, lab beside natural

How to Set a Princess

V shaped prongs are the standard mounting for a princess because the corners are what has to be covered, and a bezel or a channel style solitaire covers them completely. The outline sits well on a straight, geometric band, and it looks right in a tension style or in a four prong basket as long as each prong lands on a corner. Since a lab princess costs little at two and three carats, most buyers finish with a bold solitaire on a wide band.

The 14K white gold in the images is the default metal for every princess lab grown diamond engagement ring here, and each design can also be ordered in yellow gold, in rose gold or in platinum, with whichever stone you pick shown in place. A one carat lab princess runs about 5.5 mm along each edge. On the stone itself, the AI price score puts it beside similar lab princesses in stock and flags one that costs more than its peers, while the quality score out of 18 rolls cut, color and clarity up into one figure. Our gemologists earn no commission on what they recommend. You can reach them by chat or phone, and they will go over two or three princess finalists with you on video, side by side.

Princess Lab Grown Diamond Engagement Ring Prices as of Today

Each figure in the table below is for the complete princess lab grown diamond engagement ring with the grid's default center in it, today a 1.8 carat lab princess set in 14K white gold. You are reading finished ring prices, in other words, and not mounting prices. The Linda comfort fit solitaire is the lowest of the first designs shown at $1,475 and the Bellora hidden halo the highest at $2,255. The whole gap between them is the setting: a plain comfort fit solitaire costs the least and a pavé or a hidden halo design costs the most. Pick any other lab princess from the 61,693 in stock and every princess lab grown diamond engagement ring on the page is repriced around that stone.

Each princess lab grown engagement ring as it appears here, in 14K white gold with its center stone (October 19, 2026)

From Order to Finished Princess Lab Grown Diamond Ring

Rare Carat sells the ring to you as a direct retailer and stands as merchant of record on every order; its stock of diamonds to set, natural and lab grown together, runs past 2 million. Before any work on the ring starts, the stone you chose travels to our New York facility, and the staff there look at it through a microscope and make sure the laser inscription agrees with the grading report. Free insured shipping follows on every order, returns are free for 30 days, resizing is free for the first year, and a lifetime manufacturing warranty applies to the finished setting. At checkout you can split the cost with Katapult, Affirm, Klarna, Afterpay or PayPal Pay Later. Rare Carat holds 5 out of 5 from customers on Google and on Trustpilot, and that score makes it America's highest rated jewelry brand on Trustpilot.

Stone counts and prices here take in every lab princess diamond Rare Carat had in inventory on October 19, 2026. The filters are the diamond grid's own: with or without video, D to K in color, FL to SI2 in clarity, Good cut or better, and a GIA, IGI or GCAL report. That comes to 61,693 lab grown stones, 53,256 of them with 360 HD video, plus 28,922 natural princesses used for the comparison. Every price is what you would pay today with savings applied, and the regular price appears struck through on each stone. A starting price is the cheapest stone in that row whatever its grade. A ring price is the complete ring as it appeared here in 14K white gold on October 19, 2026, with the center stone named, and design counts are what the page showed at the time. The color and clarity ladders use only 0.90 to 1.10 carat stones so that grade, and not weight, is what moves the price.