Marquise|Lab Grown|IGI

3.18ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG804660100

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG804660100

Diamond specifications and retailer prices

From €3,242 EUR

$3,622 USD

As of October 30, 2026

Save €19,064 EUR (85%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: €22,306 EUR at Do Amore Diamonds · As of October 31, 2026

View at Do Amore Diamonds

About this 3.18ct lab-grown marquise diamond

This 3.18ct 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 LG804660100 or 804660100. Listed at 14 retailers as of October 30, 2026, with prices from €3,242 to €22,306, a €19,064 spread on the same certified stone. Do Amore Diamonds lists it at €22,306. 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

3.18

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle38.1°

Pavilion angle40°

OriginLab Grown

Grading LabIGI

CertificateIGI LG804660100

Dimensions14.39 × 7.58 × 4.88 mm

L/W Ratio1.90

Girdle conditionFaceted

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 LG804660100

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: €22,306 EUR|Low: €3,242 EUR|High: €25,689 EUR|Avg: €7,331 EUR|-13.2%

Do Amore Diamonds

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

November 1, 2026

Retailer 10€3,242 EUR

Retailer 11€3,402 EUR

Retailer 8€3,543 EUR

Retailer 4€3,561 EUR

Retailer 13€3,898 EUR

Retailer 5€4,388 EUR

Retailer 7€5,086 EUR

Retailer 3€5,188 EUR

Retailer 2€5,832 EUR

Retailer 6€6,775 EUR

Retailer 12€7,120 EUR

Retailer 9€8,450 EUR

Retailer 14€8,940 EUR

Do Amore Diamonds€22,306 EUR

34 data points across 14 retailers

14 retailers€3,242 EUR to €22,306 EUR

Cheapest Retailer

€3,242 EUR

$3,622 USD

Retailer 2

€3,402 EUR

$3,801 USD

View

Retailer 3

€3,543 EUR

$3,958 USD

View

Retailer 4

€3,561 EUR

$3,978 USD

View

Retailer 5

€3,898 EUR

$4,355 USD

View

Retailer 6

€4,388 EUR

$4,902 USD

View

Final sale: no returns

Retailer 7

€5,086 EUR

$5,682 USD

View

Retailer 8

€5,188 EUR

$5,796 USD

View

B+

Retailer 9

€5,832 EUR

$6,515 USD

View

Retailer 10

€6,775 EUR

$7,570 USD

View

Price last confirmed 49 days ago

B+

Retailer 11

€7,120 EUR

View

B+

Retailer 12

€8,450 EUR

$9,440 USD

View

B+

Retailer 13

€8,940 EUR

£7,864 GBP

View

Most Expensive

Do Amore Diamonds

27-F1234B2E2 · Oct 31

€22,306 EUR

$24,920 USD

View

13 more retailers have this diamond

Prices start from €3,242 EURSave up to €19,064 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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3.18ct Marquise

€3,242 EUR