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Marquise|Lab Grown|IGI

4.05ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG650475156

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG650475156

Diamond specifications and retailer prices

From €456 EUR
$512 USD
As of November 2, 2026
Save €1,907 EUR (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €2,363 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 4.05ct lab-grown marquise diamond

This 4.05ct 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 LG650475156 or 650475156. Listed at 14 retailers as of November 1, 2026, with prices from €456 to €2,363, a €1,907 spread on the same certified stone. MOH London lists it at €2,363. 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

4.05
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG650475156
Dimensions16.73 × 8.25 × 5.23 mm
L/W Ratio2.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.73 mm8.25 mm4.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG650475156
Side View
Table 59.0%Crown 36.5°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
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 2
Current: €2,363 EUR|Low: €456 EUR|High: €4,567 EUR|Avg: €1,441 EUR|-0.6%
MOH London
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
Retailer 17
November 2, 2026
Retailer 12€456 EUR
Retailer 2€488 EUR
Retailer 5€512 EUR
Retailer 13€566 EUR
Retailer 16€628 EUR
Retailer 14€691 EUR
Retailer 15€862 EUR
Retailer 10€877 EUR
Retailer 4€879 EUR
Retailer 3€1,040 EUR
Retailer 7€1,200 EUR
Retailer 11€1,461 EUR
Retailer 17€1,489 EUR
Retailer 6€2,327 EUR
MOH London€2,363 EUR
Retailer 8€3,557 EUR
Retailer 9€4,567 EUR

6 data points across 17 retailers

14 retailers€456 EUR to €2,363 EUR

A
Cheapest Retailer
-
€456 EUR
$512 USD
A
Retailer 2
-
€488 EUR
£431 GBP
View
A
Retailer 3
-
€512 EUR
$574 USD
View
A
Retailer 4
-
€566 EUR
$635 USD
View
A
Retailer 5
-
€628 EUR
HK$5,500 HKD
View
A
Retailer 6
-
€691 EUR
$775 USD
View
A
Retailer 7
-
€862 EUR
$967 USD
View
A
Retailer 8
-
€877 EUR
£774 GBP
View
B+
Retailer 9
-
€879 EUR
$986 USD
View
B+
Retailer 10
-
€1,040 EUR
$1,167 USD
View
B+
Retailer 11
-
€1,461 EUR
$1,639 USD
View
B
Retailer 12
-
€1,489 EUR
$1,670 USD
View
B
Retailer 13
-
€2,327 EUR
$2,610 USD
View
Most Expensive
B
MOH London
LG650475156 · Nov 1
€2,363 EUR
£2,087 GBP
View
13 more retailers have this diamond
Prices start from €456 EURSave up to €1,907 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
4.05ct Marquise
€456 EUR