FAQs
How much does a 5 carat lab grown diamond engagement ring cost?
Most of the price is the center stone, so start there. A lab grown diamond in the 4.90 to 5.10 ct range costs from $2,140 at Rare Carat today, savings included, and the median is $4,655. If you want a round, the lab rounds in this band begin at $2,470 with a median of $4,683. For the complete 5 carat lab grown diamond engagement ring, the designs are shown today with a 5.22 carat lab round. With that stone the Linda comfort fit solitaire is $3,320, the Bellora hidden halo is $4,100 and the Vivian solitaire is $3,650. The tables higher up the page list the starting price, median and count for each row.
Where is the best place to buy a 5 carat lab grown diamond engagement ring online?
Our pick: Rare Carat is the best place to buy a 5 carat lab grown diamond engagement ring online in 2026. Our 5 carat lab grown diamond engagement rings are gathered on one page: 680 or more settings matched to 45,053 lab grown diamonds between 4.90 and 5.10 ct. Of those stones, 39,528 are on 360 HD video, and every one carries an AI price score measured against comparable diamonds, plus our quality score, which runs out of 18. Rare Carat is the merchant of record on each order, and all of the more than 2 million lab grown and natural diamonds we carry can be set in these designs. The gemologists who help you are paid no commission. Insured delivery comes with the ring, as do 30 days of free returns and a year of free resizing, and the setting carries a lifetime manufacturing warranty. Once you have ordered, our New York staff examine the stone under a microscope and confirm the inscription against its report. On Google and on Trustpilot customers give Rare Carat 5 out of 5, and Trustpilot ranks it the highest rated jewelry brand in America.
What a lab grown center stone at this weight costs by shape at Rare Carat (today's prices, October 19, 2026):Where Rare Carat shines: the range of 5 carat lab grown diamond engagement rings is wide, and for any of them the stone can be picked on video out of every shape in the band.
What a lab grown center stone at this weight costs by shape at Rare Carat (today's prices, October 19, 2026):Where Rare Carat shines: the range of 5 carat lab grown diamond engagement rings is wide, and for any of them the stone can be picked on video out of every shape in the band.
How big is a 5 carat diamond on the hand?
A lab round of this weight spans roughly 11 mm across the top. A 5 carat oval runs about 13.5 x 10 mm and a pear 15 x 10 mm, while an emerald cut comes in near 11.5 x 8.5 mm and a cushion near 10.5 mm. Because the longer shapes cover more skin for the same weight, they look bigger, and the oval happens to be the least expensive shape at this size when you compare medians ($4,496). The exact millimeter measurements of any stone are printed on its product page, so you can confirm how it will sit on the hand before you decide.
Which shape is the best value at 5 carats?
The oval comes out ahead, with a median of $4,496 against $4,683 for the round, and it gives you extra spread on top of the saving. Set in a 5 carat lab diamond engagement ring, an oval or pear covers more of the finger than a round and usually costs less. The round keeps its premium at this weight for two reasons: it returns more light than any other shape, and it comes with a laboratory cut grade. For every shape's count, lowest price and median, see the lab grown shape table above.
What color and clarity should a 5 carat lab grown stone be?
Go for D to F color and VS1 or better clarity, since almost all lab stock this size is already D to F and the step up costs much less than it does in natural. With clarity held at VS2 or better a D color starts at $4,595, and with color held at D to F a VS1 starts at $4,065. Hold out for an Excellent cut.
How much more is the same ring with a natural five carat stone?
Taking a 5 carat round at G color and VS1 clarity, the natural stone begins at $148,260 and the lab stone at $3,465. Across every shape the band medians are $81,355 natural and $4,655 lab grown. These settings with natural stones are priced on our 5 carat natural diamond engagement rings page.
Can the ring be resized, and what does the warranty cover?
Yes, and the same terms apply to every 5 carat lab grown diamond engagement ring on this page. Shipping is insured and costs nothing, and you have 30 days to return the ring free of charge. We resize it at no charge in the first year, and the setting carries a lifetime manufacturing warranty. Before the ring is finished, our New York staff put the stone under a microscope and match its inscription to the grading report.
Can I finance a 5 carat lab grown diamond engagement ring?
Yes, and the terms are shown before you commit. Klarna, Afterpay, PayPal Pay Later, Katapult and Affirm are all available at checkout, so a 5 carat lab diamond engagement ring built on the $4,655 median stone can be spread over monthly payments. Paying that way changes nothing else: the ring still ships insured at no cost, can come back free within 30 days, can be resized free in its first year and keeps the lifetime manufacturing warranty on its setting.
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