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Marquise|Lab Grown|IGI

4.02ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG602389204

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG602389204

Diamond specifications and retailer prices

From £437 GBP
$586 USD
As of November 2, 2026
Save £3,438 GBP (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,875 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 LG602389204 or 602389204. Listed at 11 retailers as of November 2, 2026, with prices from £437 to £3,875, a £3,438 spread on the same certified stone. Do Amore Diamonds lists it at £3,875. 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602389204
Dimensions16.34 × 8.48 × 5.23 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
16.34 mm8.48 mm4.02 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602389204
Side View
Table 61.0%Crown 34.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
A
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: Nov 2
Current: £3,875 GBP|Low: £433 GBP|High: £26,790 GBP|Avg: £2,809 GBP|-85.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9£437 GBP
Retailer 7£489 GBP
Retailer 2£516 GBP
Retailer 11£832 GBP
Retailer 6£835 GBP
Retailer 8£1,344 GBP
Retailer 3£1,518 GBP
Retailer 10£1,572 GBP
Retailer 4£2,356 GBP
Retailer 5£2,481 GBP
Do Amore Diamonds£3,875 GBP

25 data points across 11 retailers

11 retailers£437 GBP to £3,875 GBP

A
Cheapest Retailer
-
£437 GBP
$586 USD
A
Retailer 2
-
£489 GBP
$656 USD
View
A
Retailer 3
-
£516 GBP
View
B+
Retailer 4
-
£832 GBP
$1,117 USD
View
A
Retailer 5
-
£835 GBP
$1,120 USD
View
B+
Retailer 6
-
£1,344 GBP
$1,803 USD
View
B
Retailer 7
-
£1,518 GBP
$2,037 USD
View
B
Retailer 8
-
£1,572 GBP
$2,110 USD
View
B
Retailer 9
-
£2,356 GBP
View
B
Retailer 10
-
£2,481 GBP
$3,330 USD
View
Most Expensive
B
Do Amore Diamonds
27-E37D13574 · Nov 2
£3,875 GBP
$5,200 USD
View
10 more retailers have this diamond
Prices start from £437 GBPSave up to £3,438 GBP

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
£437 GBP