Marquise Cut Lab Grown Diamond Engagement Rings

Pricing a Marquise Lab Grown Diamond Engagement Ring, Stone First

On this page there are 500 or more marquise lab grown diamond engagement ring designs, and the center of each one comes from 101,542 lab marquise diamonds in stock today, 87,565 of which have 360 HD video. In practice the stone accounts for most of what you pay. The least expensive lab marquise costs $130 after the current savings come off. Within the 0.90 to 1.10 carat band, which is the size the designs are pictured with, the floor is $425 and the median $674. With a 1 carat lab marquise in place, the Bellora hidden halo comes to $1,410 and the Marie hidden halo to $810, both priced today in 14K white gold, stone included. We pulled these numbers from inventory on October 17, 2026 and update them regularly.

A marquise lab grown engagement ring gives you the biggest look per carat: at one carat the stone spreads to roughly 10 by 5 mm, the largest face up area for its weight of any cut, though its two points need protecting. Lab marquise stones are plentiful and cheap at size, so a two carat lab marquise in a plain six prong mount is among the largest looking rings on the site for the price.

Lab Grown Marquise Engagement Ring Centers by Carat

In the table below, every lab marquise in our inventory is sorted into carat bands, and the rows total the 101,542 stones counted above. The 1.90 to 2.10 ct band is the best stocked, with 21,307 stones. Medians sit at $674 for 0.90 to 1.10 carats, $1,588 for 1.90 to 2.10 and $2,753 for 2.90 to 3.10. Your lab grown marquise engagement ring price is the stone plus the setting you pick from the grid, so swapping in a different stone within the same design moves the total by the difference. Where a band has its own ring page, the band is linked so you can look at the designs at that weight.

Lab marquise centers by carat band as of October 17, 2026: today's prices across 101,542 stones

Which Color and Clarity Grades Matter in a Lab Marquise

Color barely moves the price of a lab marquise, because 98 percent of the stones on the color ladder in the 0.90 to 1.10 carat band already grade D to F. With clarity fixed at VS2 or better, D opens at $435 and G at $440. Clarity behaves the same way once color is fixed at D to F, with VS1 opening at $425 and VVS2 at $435. For a lab marquise center, D to F with VS1 or better is the reasonable choice, and you can put what a higher grade would have cost toward carat weight or the setting instead.

Opening prices for 0.90 to 1.10 ct lab marquises: by color grade with clarity at VS2 or better (17,537 stones), then by clarity grade with color at D to F (17,309 stones)

Weighing a Natural Marquise Instead

Put a natural marquise in the same ring and the price gap is wide. A one carat G color VS1 marquise opens at $440 lab grown and at $2,145 natural, and across the full one carat band the medians are $674 and $2,746. The natural stone brings scarcity and, in most cases, a GIA report, since 30,946 of the 36,522 natural marquises carry one. The lab stone, at the same spend, brings more weight and a higher grade. To price these same designs around a natural center, use the marquise natural diamond engagement rings page; the marquise diamonds grid shows both origins side by side.

Marquise at 0.90 to 1.10 ct, lab beside natural at matching grades

Which Setting Protects a Marquise

Anyone worried about chipping the tips of a marquise should look first at six prongs with a V prong over each point, the standard mount for the shape. A bezel covers the whole outline if you want more protection. The stone can run along the finger, which lengthens the hand, or sit east west for a more current look. Since a lab marquise is cheap, most buyers of a marquise lab grown engagement ring go up a stone size instead of adding a halo, and a slim band keeps the long outline visible.

A one carat lab marquise measures about 10 by 5 mm, and the marquise lab grown diamond engagement ring styles here are shown with a stone close to that size in 14K white gold. Each design is also offered in yellow gold, rose gold and platinum, with the stone you select displayed in the mounting before you buy. The AI price score beside every stone measures it against comparable lab marquises in stock and flags any priced above the rest of that group. The quality score out of 18 folds cut, color and clarity into a single figure. Our gemologists work without commission, are available by chat or phone, and will go over two or three marquise finalists with you on video.

What Comes With a Marquise Lab Grown Engagement Ring from Rare Carat

Rare Carat stands behind the sale as a direct retailer and the merchant of record on every order. Its inventory of natural and lab grown diamonds runs past 2 million. After you order, returns are free for 30 days; after the ring arrives, resizing is free in the first year, while the setting itself is under a lifetime manufacturing warranty. Before the ring is set, our New York team checks the stone under a microscope and matches its inscription to the grading report, and the finished ring then ships free and insured. At checkout you can split the cost into monthly payments through PayPal Pay Later, Katapult, Affirm, Klarna or Afterpay. On both Google and Trustpilot, customers have given Rare Carat 5 out of 5, and Trustpilot ranks it as the highest rated jewelry brand in America.

Stone counts and prices in this note take in every lab marquise diamond that Rare Carat had in inventory on October 17, 2026. The filters match the diamond grids: clarity from FL to SI2, cut Good or better, grading by GIA, IGI or GCAL, with or without video, and color from D to K. That gives 101,542 lab grown stones (87,565 of them with 360 HD video) plus 36,522 natural marquises used for comparison. Stone prices already reflect the current savings, which apply automatically, and each stone displays its regular price struck through. The starting price in any row is the cheapest stone that row holds, whatever grade it carries. Complete ring prices are what this page quoted on October 17, 2026, each in 14K white gold with the center stone named; the design count is the number the page reports. The color and clarity ladders use only the 0.90 to 1.10 carat band so that grade is the only thing changing the price.