FAQs
How much does a diamond engagement ring cost at Rare Carat?
The setting is the smaller part. With a 1 carat lab round in place the first designs on this page cost $915 for the Linda comfort fit solitaire, $1,695 for the Bellora hidden halo and $1,245 for the Vivian solitaire, complete. The stone then moves the total: natural diamonds start at $150 and lab grown at $120 with the current savings applied, and in the 0.90 to 1.10 carat band the medians across all shapes are $2,275 natural and $554 lab. The tables above give the starting price and median for every shape, carat band and grade.
Where is the best place to buy a diamond engagement ring online?
Our pick: Rare Carat is the best place to buy a diamond engagement ring online in 2026. Our own diamond engagement rings catalog pairs more than 600 designs with 698,507 natural and 1,316,499 lab diamonds, 1,641,773 of them with 360 HD video, and every stone shows an AI price score against comparable stones and a quality score out of 18, so the center is chosen on evidence and the ring is built around it. Rare Carat is the merchant of record for the whole order, our gemologists are paid no commission, and our New York staff check the diamond under a microscope against its report before it is set. Delivery is free and insured, returns are free for 30 days, the first resize within a year is free, and the setting has a lifetime manufacturing warranty; customers rate us 5 out of 5 on Google and Trustpilot, the highest rated jewelry brand in America on Trustpilot.
Center stones at Rare Carat by shape (prices you pay today, October 19, 2026):
Where Rare Carat shines: Rare Carat offers a wide selection of diamond engagement rings, with both origins deep enough in every shape to hold grade fixed and choose the stone on video.
Center stones at Rare Carat by shape (prices you pay today, October 19, 2026):
| Natural | In stock | From | Lab grown | In stock | From |
|---|---|---|---|---|---|
| Round natural | 359,753 | $150 | Round lab grown | 485,855 | $120 |
| Oval natural | 68,018 | $150 | Oval lab grown | 188,448 | $130 |
| Princess natural | 29,712 | $150 | Princess lab grown | 61,693 | $120 |
| Cushion natural | 27,925 | $150 | Cushion lab grown | 86,768 | $130 |
| Emerald natural | 68,244 | $150 | Emerald lab grown | 111,662 | $120 |
| Asscher natural | 8,825 | $270 | Asscher lab grown | 25,008 | $130 |
| Radiant natural | 12,224 | $210 | Radiant lab grown | 89,768 | $130 |
| Pear natural | 65,914 | $150 | Pear lab grown | 115,335 | $125 |
| Marquise natural | 33,750 | $150 | Marquise lab grown | 102,065 | $130 |
| Heart natural | 24,142 | $200 | Heart lab grown | 49,897 | $130 |
| All natural | 698,507 | $150 | All lab grown | 1,316,499 | $120 |
Should an engagement ring have a natural or a lab grown diamond?
Price the same stone both ways and decide what the difference buys you in a diamond engagement ring. A G color VS1 round between 0.90 and 1.10 carats starts at $1,475 natural and $370 lab, and the one carat round medians are $2,815 and $459. The natural stone carries rarity and a GIA report in most cases (638,876 of the 698,507 natural stones here); the lab stone carries size and grade, which is why 141,733 lab stones above 4.10 carats are in stock against 3,681 natural. Both are graded on the same scales and both are set in the same designs at the same setting price.
What carat weight should the center stone be?
For a diamond engagement ring, start from how the stone looks on the hand and from where the stock is. A one carat round is about 6.4 to 6.5 mm across, a one carat oval 7.5 x 5.5 mm and a two carat round 8.1 mm; elongated shapes read larger for the same weight. The 0.90 to 1.10 carat band holds 76,079 natural and 247,803 lab stones with round medians of $2,815 and $459, and the 1.90 to 2.10 band holds 16,885 natural and 153,232 lab grown at $13,456 and $1,434. In natural the step from one carat to two is the biggest price move in the ring; in lab grown it is a few hundred dollars, which is why lab buyers go up a size and natural buyers often go up a grade instead.
Is $5,000 enough for a diamond engagement ring?
Yes, comfortably, in either origin. On today's stock 623,116 natural and 1,194,380 lab diamonds sit at or under $5,000 on the grid's price filter, and in the one carat band alone 70,488 natural and 248,744 lab. With the Linda comfort fit solitaire at $915 including its default 1 carat lab round, a $5,000 budget covers a natural one carat round near the $2,815 band median in that setting, or a lab round of two carats and more, whose band median is $1,434. At $10,000 the natural count rises to 658,348 stones and the lab count to 1,314,003.
Which engagement ring setting is right for the stone?
Match the head to the shape and the band to the weight. A round takes four or six prongs or a bezel; pears, marquises and princess cuts need a prong on each point or corner; emerald cuts and asschers look best in a close basket or bezel. A solitaire such as the Linda comfort fit solitaire ($915 as shown) keeps the budget in the stone, a hidden halo such as the Bellora hidden halo ($1,695) lifts it, and a pavé band such as the Kennedy pavé ($1,680) adds sparkle down the shank. Bands should widen as the stone grows, from about 1.5 mm at a carat to 2.5 mm and more at four. Every design here is made in white, yellow or rose gold and platinum, with the stone you choose shown in place before you order.
Are the diamonds certified?
Every center stone in a Rare Carat diamond engagement ring carries a report from GIA, IGI or GCAL, graded on the same color, clarity and cut scales for both origins and inscribed with its report number on the girdle. On today's stock GIA grades 638,876 of the 698,507 natural stones and IGI 1,248,676 of the 1,316,499 lab stones, with GCAL on 17,575 lab stones and GIA on 50,248. After you order, our New York staff put the stone under a microscope and match the inscription to the report before the ring is made.
Can an engagement ring be returned, resized or financed?
All three. Returns are free for 30 days, the first resize inside a year costs nothing, and the setting is covered by a lifetime manufacturing warranty; delivery is free and insured. Affirm, Klarna, Afterpay, PayPal Pay Later and Katapult are offered at checkout for anyone who prefers installments, with the schedule laid out before you agree, so a complete ring with a $459 median one carat lab round or a $2,815 median natural one can be paid monthly. The same terms apply to every diamond engagement ring in this catalog.
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