CaratHunter
Plans
Round|Lab Grown|IGI

4.01ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG727578514

Shape and cutting style on the report: Round brilliant

Certificate IGI LG727578514

Diamond specifications and retailer prices

From $616 SGD
$482 USD
As of October 26, 2026
Save $3,475 SGD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,091 SGD at Brilliant Earth · As of October 24, 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 LG727578514 or 727578514. Listed at 17 retailers as of October 24, 2026, with prices from $616 to $4,091, a $3,475 spread on the same certified stone. Brilliant Earth lists it at $4,091. 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 angle33.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727578514
Dimensions10.29 × 10.26 × 6.20 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.29 mm10.26 mm4.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727578514
Side View
Table 58.0%Crown 33.3°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.3%

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 26
Current: $4,091 SGD|Low: $491 SGD|High: $4,206 SGD|Avg: $1,583 SGD|-2.7%
Brilliant Earth
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 9$616 SGD
Retailer 3$689 SGD
Retailer 4$764 SGD
Retailer 10$764 SGD
Retailer 2$946 SGD
Retailer 11$1,193 SGD
Retailer 5$1,258 SGD
Retailer 12$1,287 SGD
Retailer 7$1,735 SGD
Retailer 8$1,783 SGD
Retailer 6$3,194 SGD
Brilliant Earth$4,091 SGD

39 data points across 12 retailers

17 retailers$616 SGD to $4,091 SGD

A
Cheapest Retailer
-
$616 SGD
$482 USD
Retailer 2
-
$690 SGD
$540 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$764 SGD
$598 USD
View
Retailer 4
-
$764 SGD
$598 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$946 SGD
$740 USD
View
B+
Retailer 6
-
$1,193 SGD
$933 USD
View
A
Retailer 7
-
$1,258 SGD
£775 GBP
View
A
Retailer 8
-
$1,287 SGD
$1,007 USD
View
B+
Retailer 9
-
$1,571 SGD
$1,229 USD
View
B+
Retailer 10
-
$1,735 SGD
A$2,088 AUD
View
B+
Retailer 11
-
$1,783 SGD
$1,395 USD
View
Retailer 12
-
$1,896 SGD
$1,483 USD
View
Price last confirmed 45 days ago
B
Retailer 13
-
$2,456 SGD
$1,921 USD
View
B
Retailer 14
-
$2,492 SGD
$1,950 USD
View
B
Retailer 15
-
$3,194 SGD
£1,967 GBP
View
Retailer 16
-
$3,219 SGD
$2,518 USD
View
Price last confirmed 96 days ago
Most Expensive
B
Brilliant Earth
15507358A · Oct 24
$4,091 SGD
$3,200 USD
View
16 more retailers have this diamond
Prices start from $616 SGDSave up to $3,475 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
$616 SGD