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Round|Lab Grown|IGI

4.01ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG640419749

Shape and cutting style on the report: Round brilliant

Certificate IGI LG640419749

Diamond specifications and retailer prices

From €404 EUR
$451 USD
As of October 29, 2026
Save €3,033 EUR (88%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €3,437 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.01ct lab-grown round diamond

This 4.01ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG640419749 or 640419749. Listed at 16 retailers as of October 29, 2026, with prices from €404 to €3,437, a €3,033 spread on the same certified stone. Brilliant Earth lists it at €3,437. 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

4.01
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640419749
Dimensions10.21 × 10.27 × 6.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
10.21 mm10.27 mm4.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640419749
Side View
Table 57.0%Crown 34.2°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.7%

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: Oct 29
Current: €3,437 EUR|Low: €404 EUR|High: €3,858 EUR|Avg: €1,123 EUR|-10.9%
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 1, 2026
Retailer 4€404 EUR
Retailer 12€452 EUR
Retailer 3€500 EUR
Retailer 16€500 EUR
Retailer 10€627 EUR
Retailer 15€644 EUR
Retailer 6€785 EUR
Retailer 9€810 EUR
Retailer 2€818 EUR
Retailer 7€869 EUR
Retailer 8€1,090 EUR
Retailer 13€1,344 EUR
Retailer 5€1,608 EUR
Retailer 11€1,847 EUR
Retailer 14€2,036 EUR
Brilliant Earth€3,437 EUR

40 data points across 16 retailers

16 retailers€404 EUR to €3,437 EUR

A
Cheapest Retailer
-
€404 EUR
$451 USD
A
Retailer 2
-
€452 EUR
$505 USD
View
A
Retailer 3
-
€500 EUR
$559 USD
View
Retailer 4
-
€500 EUR
$559 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
€627 EUR
$700 USD
View
Retailer 6
-
€644 EUR
£566 GBP
View
Price last confirmed 15 days ago
B+
Retailer 7
-
€785 EUR
$877 USD
View
A
Retailer 8
-
€810 EUR
View
A
Retailer 9
-
€818 EUR
£720 GBP
View
A
Retailer 10
-
€869 EUR
$971 USD
View
B+
Retailer 11
-
€1,090 EUR
$1,218 USD
View
B+
Retailer 12
-
€1,344 EUR
$1,502 USD
View
B+
Retailer 13
-
€1,608 EUR
$1,797 USD
View
B
Retailer 14
-
€1,847 EUR
£1,625 GBP
View
Retailer 15
-
€2,036 EUR
$2,275 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
10688124A · Oct 31
€3,437 EUR
$3,840 USD
View
15 more retailers have this diamond
Prices start from €404 EURSave up to €3,033 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
4.01ct Round
€404 EUR