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Round|Lab Grown|IGI

4.01ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG783628127

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783628127

Diamond specifications and retailer prices

From $802 USD
As of October 30, 2026
Save $1,706 USD (68%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,508 USD at MOH London · As of October 29, 2026
View at MOH London

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 LG783628127 or 783628127. Listed at 6 retailers as of October 29, 2026, with prices from $802 to $2,508, a $1,706 spread on the same certified stone. MOH London lists it at $2,508. 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 angle35.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783628127
Dimensions10.13 × 10.09 × 6.30 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
10.13 mm10.09 mm4.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783628127
Side View
Table 56.0%Crown 35.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.3%

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 30
Current: $2,508 USD|Low: $802 USD|High: $2,525 USD|Avg: $1,375 USD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 3$802 USD
Retailer 4$932 USD
Retailer 2$990 USD
Retailer 5$1,229 USD
Retailer 6$1,950 USD
MOH London$2,508 USD

40 data points across 6 retailers

6 retailers$802 USD to $2,508 USD

B+
Cheapest Retailer
-
$802 USD
A
Retailer 2
-
$932 USD
View
A
Retailer 3
-
$990 USD
£779 GBP
View
B+
Retailer 4
-
$1,229 USD
View
B
Retailer 5
-
$1,950 USD
View
Most Expensive
B
MOH London
LG783628127 · Oct 29
$2,508 USD
£1,975 GBP
View
5 more retailers have this diamond
Prices start from $802 USDSave up to $1,706 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
$802 USD