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Marquise|Lab Grown|IGI

0.43ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG538298052

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG538298052

Diamond specifications and retailer prices

From £82 GBP
$109 USD
As of October 27, 2026
Save £773 GBP (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £854 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.43ct lab-grown marquise diamond

This 0.43ct lab-grown marquise sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG538298052 or 538298052. Listed at 13 retailers as of October 27, 2026, with prices from £82 to £854, a £773 spread on the same certified stone. MOH London lists it at £854. 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

0.43
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.2°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538298052
Dimensions7.45 × 3.94 × 2.52 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizePointed
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
7.45 mm3.94 mm0.43 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG538298052
Side View
Table 57.5%Crown 40.2°Girdle: THN-THKPavilion 37.9°Culet: NoneDepth 64.0%

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: Oct 27
Current: £854 GBP|Low: £46 GBP|High: £860 GBP|Avg: £228 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 4£46 GBP
Retailer 6£82 GBP
Retailer 11£95 GBP
Retailer 8£108 GBP
Retailer 12£108 GBP
Retailer 9£201 GBP
Retailer 2£202 GBP
Retailer 7£240 GBP
Retailer 5£246 GBP
Retailer 3£272 GBP
Retailer 10£327 GBP
MOH London£854 GBP

41 data points across 12 retailers

13 retailers£82 GBP to £854 GBP

A
Cheapest Retailer
-
£82 GBP
$109 USD
A
Retailer 2
-
£95 GBP
$127 USD
View
A
Retailer 3
-
£108 GBP
$144 USD
View
A
Retailer 4
-
£108 GBP
$144 USD
View
B+
Retailer 5
-
£201 GBP
$268 USD
View
B+
Retailer 6
-
£202 GBP
View
B+
Retailer 7
-
£211 GBP
HK$2,200 HKD
View
B+
Retailer 8
-
£240 GBP
$320 USD
View
B+
Retailer 9
-
£246 GBP
View
B
Retailer 10
-
£272 GBP
$362 USD
View
B
Retailer 11
-
£327 GBP
$436 USD
View
B
Retailer 12
-
£371 GBP
$493 USD
View
Most Expensive
B
MOH London
LG538298052 · Oct 29
£854 GBP
View
12 more retailers have this diamond
Prices start from £82 GBPSave up to £773 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
0.43ct Marquise
£82 GBP