Cushion Cut Lab Grown Diamond Engagement Rings

What the Center Stone Costs in a Cushion Lab Grown Diamond Engagement Ring

Of the 86,357 lab grown cushions in stock at Rare Carat today, 74,350 come with 360 HD video, and the 610 or more cushion lab grown diamond engagement ring designs shown here each take one of them as the center. Most of what you pay for the ring is the stone itself. With the current savings taken off, the least expensive lab cushion is $130 and the entry price between 0.90 and 1.10 carats, the one carat benchmark, is $390 with a median of $619. Ring prices on the page today assume a 1.91 carat lab cushion in 14K white gold, stone included, which puts the Linda comfort fit solitaire at $1,540, the Vivian solitaire at $1,870, and the Bellora hidden halo at $2,320. The stock numbers date from October 17, 2026 and get refreshed on a regular basis.

The cushion outline is a square or rectangle with softened corners, and the same stone reads vintage inside a halo and current in a plain bezel. Lab grown cushions are cut in both the chunky faceting pattern and the crushed ice pattern, and at these prices the choice between them can be made on looks alone. Since the center stone decides what a lab grown cushion engagement ring costs, the table that follows breaks that figure out by carat band.

Carat Band Pricing for Lab Grown Cushion Centers

Every one of the 86,357 lab cushions in our inventory falls into one of the carat bands below, so the stock column sums to that total. The largest group, 14,348 stones, sits between 0.90 and 1.10 carats. Median prices climb from $619 in the 0.90 to 1.10 band to $1,606 at 1.90 to 2.10 and $2,926 at 2.90 to 3.10. A finished ring costs the center stone plus the design it goes into, which means putting a different stone in the same design moves the total with it. Where a band has a ring page of its own, the band name links to it.

86,357 lab grown cushions grouped by carat band, today's prices as of October 17, 2026

How Color and Clarity Price in a Lab Cushion

D, E and F stones make up 98 percent of the lab cushions on the color ladder between 0.90 and 1.10 carats, which leaves color almost no room to move the price of a cushion lab grown engagement ring: with clarity fixed at VS2 or better, a D color stone opens at $450 while a G opens at $420. The clarity ladder behaves the same way once color is fixed at D to F, with VS1 opening at $425 and VVS2 at $475. A D to F stone at VS1 or better is the sensible center for a lab cushion, and the amount a higher grade would have cost can go into carat weight and the setting instead.

Entry prices for 0.90 to 1.10 ct lab cushions: 14,230 stones on the color ladder at VS2 or better, 14,122 on the clarity ladder at D to F

The Natural Cushion by Comparison

Put a natural cushion in the same design and the spend changes. At one carat in G color and VS1 clarity, the lab grown stone is priced from $475 and the natural from $1,000, while the medians for the full one carat band are $619 lab grown against $1,985 natural. What the natural stone offers is scarcity along with a GIA report, which 27,188 of the 27,837 natural cushions in stock carry; the lab stone offers more weight and a higher grade at the same spend. Our cushion natural diamond engagement rings page runs the same designs with natural centers, and both origins appear together on the cushion diamonds grid.

Lab grown against natural cushion at matched grade, 0.90 to 1.10 ct

Choosing a Setting for a Cushion

Four prongs placed on the corners, or a bezel that traces the rounded square, suit a cushion best. The halo has long paired with this shape, and because the stone in a lab grown cushion engagement ring stays inexpensive at larger sizes, a plain solitaire around a two carat stone is the other setting people pick most. Once a cushion runs elongated, 1.15 and above, a narrow band suits it, since a wide one competes with the length.

At one carat a lab grown cushion runs roughly 5.5 to 6 mm on a side, and each cushion lab grown diamond engagement ring on this page is shown in 14K white gold. Yellow gold, rose gold and platinum versions exist for every design, and whichever stone you select appears in the mounting. Every stone shows two scores: the AI price score, which measures it against comparable lab cushions in stock and marks one priced above them, and a quality score out of 18 that folds cut, color and clarity into one number. Our gemologists are paid no commission, and by chat or phone they will put two or three cushion finalists side by side on video with you.

Today's Price of a Complete Cushion Lab Grown Diamond Engagement Ring

Each figure in the table below is the price of a whole ring. The designs on this page are priced with a default center already in place, today a 1.91 carat lab cushion set in 14K white gold, so none of them is a bare setting price. Among the first designs shown, the Linda comfort fit solitaire at $1,540 marks the low end and the Bellora hidden halo at $2,320 the high end, and the difference between the two is the mounting, since a plain comfort fit solitaire is the lowest priced of the designs and a pavé or hidden halo the highest. Pick any other lab cushion from the 86,357 in stock and every cushion lab grown diamond engagement ring here takes on a new price around that stone.

Each cushion lab grown engagement ring as priced on this page in 14K white gold with the center stone counted in, as of October 17, 2026

What Happens After You Order from Rare Carat

Rare Carat is the retailer on every order and the merchant of record, and the diamonds it can set, natural and lab grown, number more than 2 million. On any ring, returns are free for 30 days, resizing is free for the first year, and the finished setting carries a lifetime manufacturing warranty. When your order comes in, the diamond travels to our New York facility, where staff put it under a microscope and confirm that its laser inscription matches the grading report, and the setting is made only after that. Shipping comes free and insured once that check is complete. At checkout the payment can be split through PayPal Pay Later, Katapult, Affirm, Klarna or Afterpay. The Rare Carat rating on Google and on Trustpilot stands at 5 out of 5 and on Trustpilot it is listed as the highest rated jewelry brand in America.

The stone counts and prices above describe every lab grown cushion Rare Carat had in inventory on October 17, 2026 under the same filters as the diamond grids: FL to SI2 clarity, a cut grade of Good or better, a GIA, IGI or GCAL report, with or without video, and D to K color. That gives 86,357 lab grown stones, 74,350 of them with 360 HD video, plus 27,837 natural cushions used for the comparison. Prices are what you would pay today after the savings are deducted, with the regular price shown struck through beside each stone. The starting price in any row is whichever stone there costs least, whatever its grade. Ring prices were read on October 17, 2026, from the designs as this page displays them, in 14K white gold and with the center stone named, and the number of designs is likewise what the page displays. The color and clarity ladders are built from stones between 0.90 and 1.10 carats so that price differences come from grade rather than weight.