Prices below are live — refreshed from inventory on every page load.
Live price guide · updated October 29, 2026

How much does a 3 carat lab-grown diamond cost?

Right now, the lowest Veyara listed total in this 3-carat group is $485, and the median listed total is $804 across 3,847 public, available rows in the 3.00–3.49ct range listed as IGI or GIA.

These are current Veyara inventory statistics grouped by shape, not an appraisal or market-wide benchmark. Open a stone page to review the lab field, report details, and supplier media available for that specific listing.

3 carat prices by shape

Shape In stock From Typical (median)
Round 989 stones $594 $778 Browse →
Oval 985 stones $704 $796 Browse →
Pear 423 stones $600 $785 Browse →
Cushion 345 stones $485 $928 Browse →
Marquise 260 stones $735 $906 Browse →
Radiant 237 stones $643 $869 Browse →
Emerald 207 stones $606 $686 Browse →
Princess 170 stones $596 $1,252 Browse →
Heart 98 stones $716 $833 Browse →
Asscher 83 stones $704 $1,196 Browse →

Figures are Veyara listed per-stone totals for the public, available rows included by the methodology below as of October 29, 2026. Listing details and availability vary by stone.

Compare similar round and oval diamonds

These groups match shape, color, clarity and grading lab within a 0.25-carat range. Up to six groups per shape appear, ordered by the number of listings. Prices are listed totals for one loose stone, calculated October 29, 2026.

The all-carat guide compares 2.00–3.99 ct stones; each size guide uses its stated half-carat range. Matching grades do not guarantee matching appearance: compare dimensions, cut information, report links and media. Small samples describe the current listings only and are not a reliable market benchmark.

Compare featured 3–4 ct ovals · Compare featured 3–4 ct rounds · Veyara’s business and buying evidence

Turn a listed stone price into a purchase budget

Start with a carat range in the table, then compare similar listings. The lowest price may belong to a different shape, color or clarity than the stone you want. Use the matched groups above when available, and review the individual reports, measurements and media before deciding.

For a ring, add the quoted setting, setting work and applicable taxes to the loose-stone total. Confirm fit and timing with your jeweler before ordering. Compare that complete quote with a finished ring; the loose-stone price alone does not establish which option costs less.

Need help reading the listings? Use our diamond buying guide or request three options for your budget. Review the shipping and return terms for the item you choose.

Methodology and limitations

This guide uses Veyara listed totals only. It includes rows that are public, currently marked available, and list IGI or GIA as the grading laboratory. Rows are grouped by carat range and, on size-specific pages, by shape.

“From” is the lowest listed total in a group. “Median” is the middle value after sorting the listed totals, or the average of the two middle values when the count is even. These figures are not appraisals, natural-diamond comparisons, resale estimates, or market-wide benchmarks.

Inventory and availability change. A catalog lab field does not assert that Veyara independently completed a report lookup; review the details and links shown for each listing.

Official references: FTC Jewelry Guides · GIA laboratory-grown diamond information · IGI report verification · GIA cut, polish and symmetry.

Lowest-priced stones right now

3.07ct Cushion
G · SI2 · IGI certified
$485.06
3.03ct Round
G · VVS2 · IGI certified
$593.88
3.04ct Round
G · VVS2 · IGI certified
$595.84
3.04ct Round
G · VVS2 · IGI certified
$595.84
3.04ct Princess
G · VVS2 · IGI certified
$595.84
3.05ct Round
G · VVS2 · IGI certified
$597.80

Common questions

What is the cheapest 3 carat lab-grown diamond right now?

As of today, the lowest-priced public 3 carat (3.00–3.49ct) stone listed as IGI or GIA in Veyara's available inventory is $485.

What is the median listed total for 3 carat stones here?

The middle sorted listed total across the 3,847 public, available 3-carat rows included here is $804. This Veyara inventory statistic is not a market-wide comparison.

Is a cheaper stone lower quality?

Not necessarily lower beauty. Price tracks catalog attributes such as color, clarity, and cut. Review the report details and supplier media disclosed on the individual stone page.

Where can I review the report information?

Each stone page shows the lab and report number recorded in the catalog. Certified rows also link the issuing lab’s generic official report-check page without claiming that a lookup has succeeded.

How do official sources describe laboratory-grown diamonds?

The FTC Jewelry Guides require a clear laboratory-grown disclosure and address when the word “diamond” may be used. GIA describes laboratory-grown diamonds as having essentially the same chemical composition and crystal structure as natural diamonds, while also explaining that laboratories can distinguish their origin. See the official FTC and GIA references linked in the methodology below.

How can I review an IGI or GIA listing?

The stone page shows the lab and report number recorded in Veyara’s catalog. It also provides the issuing lab’s generic official report-check page so a buyer can perform their own lookup; the presence of that link does not mean Veyara has confirmed a successful lookup.

What do color and clarity grades like "H color, VS2" actually mean?

On the D–Z color scale, D is colorless and color becomes more noticeable toward Z. VS2 means very slightly included; whether inclusions are visible without magnification depends on the particular stone, size and viewing conditions. Do not assume that two grades look identical. Compare the report, exact-stone media and your setting before choosing.

Which matters more for sparkle: cut, color, or clarity?

Cut quality affects how a diamond handles light. Polish and symmetry are separate assessments and do not, by themselves, establish an overall cut grade. Read the issuing laboratory’s report for the actual cut assessment, where provided, and compare proportions and exact-stone video. Color and clarity describe different properties; no single grade guarantees the appearance you will prefer.

What should I consider beyond the listed price?

Review the listed grading details, any available report link, and any supplier media for the specific stone. Laboratory-grown and natural diamonds can have different resale markets, and this guide does not estimate resale value or compare against a modeled natural-diamond price.

More price guides

All prices · 1 carat · 2 carat · 4 carat · 5 carat · Price index (historical) · By shape and carat