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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 $673 CAD
$482 USD
As of October 26, 2026
Save $3,797 CAD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,470 CAD 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 $673 to $4,470, a $3,797 spread on the same certified stone. Brilliant Earth lists it at $4,470. 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
Color
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: $4,470 CAD|Low: $536 CAD|High: $4,596 CAD|Avg: $1,730 CAD|-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$673 CAD
Retailer 3$753 CAD
Retailer 4$835 CAD
Retailer 10$835 CAD
Retailer 2$1,034 CAD
Retailer 11$1,303 CAD
Retailer 5$1,374 CAD
Retailer 12$1,407 CAD
Retailer 7$1,896 CAD
Retailer 8$1,949 CAD
Retailer 6$3,490 CAD
Brilliant Earth$4,470 CAD

39 data points across 12 retailers

17 retailers$673 CAD to $4,470 CAD

A
Cheapest Retailer
-
$673 CAD
$482 USD
A
Retailer 2
-
$754 CAD
$540 USD
View
A
Retailer 3
-
$835 CAD
$598 USD
View
Retailer 4
-
$835 CAD
$598 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$1,034 CAD
$740 USD
View
B+
Retailer 6
-
$1,303 CAD
$933 USD
View
A
Retailer 7
-
$1,374 CAD
£775 GBP
View
A
Retailer 8
-
$1,407 CAD
$1,007 USD
View
B+
Retailer 9
-
$1,717 CAD
$1,229 USD
View
B+
Retailer 10
-
$1,896 CAD
A$2,088 AUD
View
B+
Retailer 11
-
$1,949 CAD
$1,395 USD
View
Retailer 12
-
$2,072 CAD
$1,483 USD
View
Price last confirmed 45 days ago
B
Retailer 13
-
$2,683 CAD
$1,921 USD
View
B
Retailer 14
-
$2,723 CAD
$1,950 USD
View
B
Retailer 15
-
$3,490 CAD
£1,967 GBP
View
Retailer 16
-
$3,518 CAD
$2,518 USD
View
Price last confirmed 96 days ago
Most Expensive
B
Brilliant Earth
15507358A · Oct 24
$4,470 CAD
$3,200 USD
View
16 more retailers have this diamond
Prices start from $673 CADSave up to $3,797 CAD

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
$673 CAD