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Marquise|Lab Grown|IGI

4.02ct F SI1 Marquise Lab Grown Diamond

EX • F/SI1 • IGI LG754510285

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754510285

Diamond specifications and retailer prices

From €506 EUR
$567 USD
As of November 1, 2026
Save €2,481 EUR (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €2,987 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.02ct lab-grown marquise diamond

This 4.02ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG754510285 or 754510285. Listed at 17 retailers as of November 1, 2026, with prices from €506 to €2,987, a €2,481 spread on the same certified stone. Brilliant Earth lists it at €2,987. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.02
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754510285
Dimensions16.96 × 7.92 × 5.07 mm
L/W Ratio2.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.96 mm7.92 mm4.02 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754510285
Side View
Table 61.0%Crown 39.9°Girdle: MED-THKPavilion 39.2°Culet: NoneDepth 64.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €2,987 EUR|Low: €440 EUR|High: €5,332 EUR|Avg: €1,290 EUR|-44.0%
Brilliant Earth
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 6€474 EUR
Retailer 14€506 EUR
Retailer 5€530 EUR
Retailer 8€588 EUR
Retailer 11€682 EUR
Retailer 15€753 EUR
Retailer 12€848 EUR
Retailer 9€926 EUR
Retailer 4€931 EUR
Retailer 13€1,027 EUR
Retailer 2€1,325 EUR
Retailer 7€1,546 EUR
Retailer 3€1,826 EUR
Retailer 16€1,849 EUR
Retailer 10€2,342 EUR
Brilliant Earth€2,987 EUR

40 data points across 16 retailers

17 retailers€506 EUR to €2,987 EUR

Retailer 1
-
€474 EUR
$532 USD
Price last confirmed 12 days ago
A
Retailer 2
-
€506 EUR
$567 USD
View
Final sale: no returns
Retailer 3
-
€530 EUR
$595 USD
View
Price last confirmed 12 days ago
Retailer 4
-
€588 EUR
$659 USD
View
Price last confirmed 17 days ago
Retailer 5
-
€588 EUR
$659 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
€682 EUR
$765 USD
View
B+
Retailer 7
-
€753 EUR
$845 USD
View
A
Retailer 8
-
€848 EUR
$951 USD
View
A
Retailer 9
-
€926 EUR
£818 GBP
View
B+
Retailer 10
-
€931 EUR
View
A
Retailer 11
-
€1,027 EUR
$1,152 USD
View
B+
Retailer 12
-
€1,325 EUR
$1,486 USD
View
Retailer 13
-
€1,546 EUR
$1,734 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
€1,826 EUR
$2,048 USD
View
B
Retailer 15
-
€1,849 EUR
$2,073 USD
View
B
Retailer 16
-
€2,342 EUR
£2,068 GBP
View
Most Expensive
B
Brilliant Earth
18434020A · Nov 2
€2,987 EUR
$3,350 USD
View
16 more retailers have this diamond
Prices start from €506 EURSave up to €2,481 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.

A
4.02ct Marquise
€506 EUR