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Loose lab-grown diamonds · Settings sold separately

3 Carat Plus Round Lab-Grown Diamonds

Start with three options, compare the exact listings, and choose within your budget. Each featured listing includes a grading-report link and supplier-provided image and video links. Review the report and ask about any unclear media before buying.

Choose up to three diamonds for my budget → · Ask Veyara to help me compare →

Featured selection: 3–4 carats. Browse the full 3 carat plus round lab-grown diamonds inventory →

Compare 2 vs. 3 carat round diamonds with live prices →

2,088 round lab-grown diamonds are available now, from $590 to $73,140 as a total listed price per loose stone.

3 current options under your budget

Listed totals are for one loose diamond. Compare appearance, report details and setting measurements before choosing.

Supplier image for VY-00038209

3.97ct Round

$841.64 USD

F color · VS1 clarity · Lab-grown

IGI report LG741508052

Largest remaining carat weight within your budget

$182.24 more for 0.83 ct more weight than the lowest-priced option. Compare appearance before choosing.

Measurements
10.13 X 10.16 X 6.09
Stone evidence
Linked report, supplier image and video
Return protection
Eligible new U.S. loose-stone orders: 30 days from delivery, prepaid insured label, no restocking fee. Conditions and exclusions
View diamond & buying detailsVY-00038209
Supplier image for VY-27568197

3.27ct Round

$693.24 USD

F color · VS1 clarity · Lab-grown

IGI report LG808611621

Another option within your budget

$33.84 more for 0.13 ct more weight than the lowest-priced option. Compare appearance before choosing.

Measurements
9.53 X 9.58 X 5.75
Stone evidence
Linked report, supplier image and video
Return protection
Eligible new U.S. loose-stone orders: 30 days from delivery, prepaid insured label, no restocking fee. Conditions and exclusions
View diamond & buying detailsVY-27568197

Measurements and ratios are supplier-reported; compare them with the grading report. More carat weight does not guarantee a larger face-up appearance or better light performance. Live stock and prices can change. This selection does not reserve a stone. Return eligibility depends on the complete order, destination and condition of the returned stone; review applicable shipping and return terms before paying.

Get help choosing your round diamond

Have a setting to fit or a choice between two stones? Send your budget, preferred size and questions to Veyara. You can browse your matches before sharing your email.

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What to compare before buying

Compare the report and video together

Compare the listed cut, polish, symmetry and measurements on each grading report, together with the stone video. If a detail is missing from a listing, review the report or ask us before choosing.

Know what the price includes

The listed total buys one loose lab-grown diamond. A setting and assembly are separate. Checkout shows the available delivery options and any applicable additional charges.

Review the seller and applicable protection

See Veyara’s business details and buying process and the current shipping and return policy. Protection depends on the exact stone and order; review its terms before paying.

For pricing context, explore our live diamond price guide and dated price index and methodology.

Common questions about 3 carat plus round lab-grown diamonds

How much do 3+ carat round lab-grown diamonds cost?

Veyara currently lists 2,088 available 3+ carat round lab-grown diamonds from $590 to $73,140. Each figure is the total listed price for one loose stone, not a per-carat rate, and it moves as inventory changes.

Are these round diamonds certified?

Every stone featured on this page links to its grading report from the issuing laboratory — IGI or GIA — alongside supplier-provided media links. Media links alone do not independently verify the identity of the pictured stone; ask us to confirm any unclear details before buying. The report number is listed on the stone page so you can verify it with the laboratory directly.

Does the listed price include a setting?

No. The listed total buys one loose lab-grown diamond. Settings, mounting and assembly are separate, so you can set the stone with your own jeweler or ask Veyara to quote the work.

What shipping and returns apply to a round diamond order?

The terms that apply depend on the exact stone and order. Current shipping, delivery and return terms are published at https://veyaradiamonds.com/shipping-returns and are shown again on each stone's listing before payment.

Explore more: Round Lab-Grown Diamonds · 2–3 Carat Round Lab-Grown Diamonds