Marquise|Lab Grown|IGI

3.11ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG780662177

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780662177

Diamond specifications and retailer prices

From €3,175 EUR

$3,547 USD

As of October 30, 2026

Save €18,665 EUR (85%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: €21,840 EUR at Do Amore Diamonds · As of October 31, 2026

View at Do Amore Diamonds

About this 3.11ct lab-grown marquise diamond

This 3.11ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780662177 or 780662177. Listed at 15 retailers as of October 30, 2026, with prices from €3,175 to €21,840, a €18,665 spread on the same certified stone. Do Amore Diamonds lists it at €21,840. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.11

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.4°

Pavilion angle40°

OriginLab Grown

Grading LabIGI

CertificateIGI LG780662177

Dimensions14.46 × 7.48 × 4.83 mm

L/W Ratio1.93

Girdle conditionFaceted

Culet sizePointed

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG780662177

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30

Current: €21,840 EUR|Low: €3,175 EUR|High: €25,152 EUR|Avg: €7,436 EUR|-13.2%

Do Amore Diamonds

Retailer 2

Retailer 3

Retailer 4

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Retailer 11

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Retailer 15

November 1, 2026

Retailer 12€3,175 EUR

Retailer 13€3,329 EUR

Retailer 10€3,471 EUR

Retailer 6€3,486 EUR

Retailer 15€3,822 EUR

Retailer 7€4,296 EUR

Retailer 9€4,979 EUR

Retailer 4€5,080 EUR

Retailer 8€5,710 EUR

Retailer 5€6,579 EUR

Retailer 14€6,962 EUR

Retailer 11€7,671 EUR

Retailer 2€8,706 EUR

Retailer 3€10,089 EUR

Do Amore Diamonds€21,840 EUR

35 data points across 15 retailers

15 retailers€3,175 EUR to €21,840 EUR

Cheapest Retailer

€3,175 EUR

$3,547 USD

Retailer 2

€3,329 EUR

$3,719 USD

View

Retailer 3

€3,471 EUR

$3,878 USD

View

Retailer 4

€3,486 EUR

$3,895 USD

View

Retailer 5

€3,822 EUR

$4,270 USD

View

Retailer 6

€4,296 EUR

$4,800 USD

View

Final sale: no returns

Retailer 7

€4,979 EUR

$5,563 USD

View

Retailer 8

€5,080 EUR

$5,675 USD

View

Retailer 9

€5,710 EUR

$6,379 USD

View

B+

Retailer 10

€6,579 EUR

$7,350 USD

View

B+

Retailer 11

€6,962 EUR

View

B+

Retailer 12

€7,671 EUR

$8,570 USD

View

B+

Retailer 13

€8,706 EUR

£7,659 GBP

View

B+

Retailer 14

€10,089 EUR

$11,271 USD

View

Most Expensive

Do Amore Diamonds

27-990F06AC4 · Oct 31

€21,840 EUR

$24,400 USD

View

14 more retailers have this diamond

Prices start from €3,175 EURSave up to €18,665 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

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3.11ct Marquise

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