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Marquise|Lab Grown|IGI

0.40ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG538276777

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG538276777

Diamond specifications and retailer prices

From €93 EUR
$104 USD
As of November 2, 2026
Save €275 EUR (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €957 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 0.4ct lab-grown marquise diamond

This 0.4ct lab-grown marquise sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG538276777 or 538276777. Listed at 12 retailers as of October 31, 2026, with a 297% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.40
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538276777
Dimensions7.80 × 3.84 × 2.41 mm
L/W Ratio2.03
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
7.80 mm3.84 mm0.40 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG538276777
Side View
Table 55.0%Crown 33.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.8%

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: €957 EUR|Low: €88 EUR|High: €968 EUR|Avg: €289 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 6€93 EUR
Retailer 10€107 EUR
Retailer 7€122 EUR
Retailer 11€122 EUR
Retailer 4€205 EUR
Retailer 2€225 EUR
Retailer 9€231 EUR
Retailer 5€294 EUR
Retailer 3€317 EUR
Retailer 8€368 EUR
MOH London€957 EUR

45 data points across 11 retailers

12 retailers€93 EUR to €368 EUR

A
Cheapest Retailer
-
€93 EUR
$104 USD
A
Retailer 2
-
€107 EUR
$120 USD
View
A
Retailer 3
-
€122 EUR
$137 USD
View
Retailer 4
-
€122 EUR
$137 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
€205 EUR
$230 USD
View
B+
Retailer 6
-
€225 EUR
£199 GBP
View
B+
Retailer 7
-
€231 EUR
$259 USD
View
B+
Retailer 8
-
€294 EUR
£260 GBP
View
B
Retailer 9
-
€317 EUR
$355 USD
View
B
Retailer 10
-
€342 EUR
HK$3,000 HKD
View
B
Retailer 11
-
€368 EUR
$413 USD
View
Most Expensive
MOH London
LG538276777 · Nov 1
€957 EUR
£845 GBP
View
Price under review
11 more retailers have this diamond
Prices start from €93 EURSave up to €275 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
0.40ct Marquise
€93 EUR