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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 $577 SGD
$451 USD
As of October 29, 2026
Save $4,332 SGD (88%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,909 SGD at Brilliant Earth · As of October 29, 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 $577 to $4,909, a $4,332 spread on the same certified stone. Brilliant Earth lists it at $4,909. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,909 SGD|Low: $577 SGD|High: $5,510 SGD|Avg: $1,605 SGD|-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
October 31, 2026
Retailer 4$577 SGD
Retailer 12$646 SGD
Retailer 3$715 SGD
Retailer 16$715 SGD
Retailer 9$895 SGD
Retailer 15$919 SGD
Retailer 6$1,121 SGD
Retailer 2$1,157 SGD
Retailer 10$1,179 SGD
Retailer 7$1,241 SGD
Retailer 8$1,557 SGD
Retailer 13$1,920 SGD
Retailer 5$2,297 SGD
Retailer 11$2,638 SGD
Retailer 14$2,908 SGD
Brilliant Earth$4,909 SGD

39 data points across 16 retailers

16 retailers$577 SGD to $4,909 SGD

A
Cheapest Retailer
-
$577 SGD
$451 USD
A
Retailer 2
-
$646 SGD
$505 USD
View
A
Retailer 3
-
$715 SGD
$559 USD
View
Retailer 4
-
$715 SGD
$559 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$895 SGD
$700 USD
View
Retailer 6
-
$919 SGD
£566 GBP
View
Price last confirmed 14 days ago
B+
Retailer 7
-
$1,121 SGD
$877 USD
View
A
Retailer 8
-
$1,157 SGD
€862 EUR
View
A
Retailer 9
-
$1,179 SGD
£726 GBP
View
A
Retailer 10
-
$1,241 SGD
$971 USD
View
B+
Retailer 11
-
$1,557 SGD
$1,218 USD
View
B+
Retailer 12
-
$1,920 SGD
$1,502 USD
View
B+
Retailer 13
-
$2,297 SGD
$1,797 USD
View
B
Retailer 14
-
$2,638 SGD
£1,625 GBP
View
Retailer 15
-
$2,908 SGD
$2,275 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
10688124A · Oct 29
$4,909 SGD
$3,840 USD
View
15 more retailers have this diamond
Prices start from $577 SGDSave up to $4,332 SGD

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
$577 SGD