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 $482 USD
As of October 26, 2026
Save $2,718 USD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,200 USD 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 $482 to $3,200, a $2,718 spread on the same certified stone. Brilliant Earth lists it at $3,200. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $3,200 USD|Low: $384 USD|High: $3,290 USD|Avg: $1,238 USD|-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$482 USD
Retailer 3$539 USD
Retailer 4$598 USD
Retailer 10$598 USD
Retailer 2$740 USD
Retailer 11$933 USD
Retailer 5$984 USD
Retailer 12$1,007 USD
Retailer 7$1,357 USD
Retailer 8$1,395 USD
Retailer 6$2,498 USD
Brilliant Earth$3,200 USD

39 data points across 12 retailers

17 retailers$482 USD to $3,200 USD

A
Cheapest Retailer
-
$482 USD
A
Retailer 2
-
$540 USD
View
A
Retailer 3
-
$598 USD
View
Retailer 4
-
$598 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$740 USD
View
B+
Retailer 6
-
$933 USD
View
A
Retailer 7
-
$984 USD
£775 GBP
View
A
Retailer 8
-
$1,007 USD
View
B+
Retailer 9
-
$1,229 USD
View
B+
Retailer 10
-
$1,357 USD
A$2,088 AUD
View
B+
Retailer 11
-
$1,395 USD
View
Retailer 12
-
$1,483 USD
View
Price last confirmed 44 days ago
B
Retailer 13
-
$1,921 USD
View
B
Retailer 14
-
$1,950 USD
View
B
Retailer 15
-
$2,498 USD
£1,967 GBP
View
Retailer 16
-
$2,518 USD
View
Price last confirmed 96 days ago
Most Expensive
B
Brilliant Earth
15507358A · Oct 24
$3,200 USD
View
16 more retailers have this diamond
Prices start from $482 USDSave up to $2,718 USD

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
$482 USD