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Heart|Lab Grown|IGI

4.01ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG648491452

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG648491452

Diamond specifications and retailer prices

From £364 GBP
As of October 27, 2026
Save £2,009 GBP (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,373 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.01ct lab-grown heart diamond

This 4.01ct lab-grown heart 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 LG648491452 or 648491452. Listed at 17 retailers as of October 27, 2026, with prices from £364 to £2,373, a £2,009 spread on the same certified stone. Brilliant Earth lists it at £2,373. 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 angle32.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648491452
Dimensions10.40 × 10.73 × 6.42 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.40 mm10.73 mm4.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648491452
Side View
Table 55.0%Crown 32.8°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 59.8%

Caratlytics Score

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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 27
Current: £2,373 GBP|Low: £341 GBP|High: £4,471 GBP|Avg: £980 GBP|-46.9%
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
Retailer 17
Retailer 18
October 31, 2026
Retailer 6£351 GBP
Retailer 14£364 GBP
Retailer 10£392 GBP
Retailer 3£393 GBP
Retailer 7£435 GBP
Retailer 11£468 GBP
Retailer 17£541 GBP
Retailer 12£639 GBP
Retailer 4£680 GBP
Retailer 9£685 GBP
Retailer 15£717 GBP
Retailer 13£969 GBP
Retailer 18£1,015 GBP
Retailer 5£1,035 GBP
Retailer 2£1,363 GBP
Retailer 8£1,398 GBP
Retailer 16£1,600 GBP
Brilliant Earth£2,373 GBP

31 data points across 18 retailers

17 retailers£364 GBP to £2,373 GBP

Retailer 1
-
£351 GBP
$470 USD
Price last confirmed 7 days ago
A
Retailer 2
-
£364 GBP
View
A
Retailer 3
-
£393 GBP
$526 USD
View
A
Retailer 4
-
£435 GBP
$583 USD
View
A
Retailer 5
-
£468 GBP
HK$4,900 HKD
View
A
Retailer 6
-
£541 GBP
$725 USD
View
B+
Retailer 7
-
£639 GBP
€816 EUR
View
B+
Retailer 8
-
£680 GBP
$911 USD
View
B+
Retailer 9
-
£685 GBP
$918 USD
View
B+
Retailer 10
-
£717 GBP
View
B+
Retailer 11
-
£969 GBP
A$1,998 AUD
View
B
Retailer 12
-
£1,015 GBP
$1,360 USD
View
B
Retailer 13
-
£1,035 GBP
$1,387 USD
View
B
Retailer 14
-
£1,363 GBP
SGD 2,468 SGD
View
B
Retailer 15
-
£1,398 GBP
$1,873 USD
View
B
Retailer 16
-
£1,600 GBP
View
Most Expensive
B
Brilliant Earth
14415065A · Oct 30
£2,373 GBP
$3,180 USD
View
16 more retailers have this diamond
Prices start from £364 GBPSave up to £2,009 GBP

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 Heart
£364 GBP