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Radiant|Lab Grown|IGI

4.07ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG673423536

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG673423536

Diamond specifications and retailer prices

From £339 GBP
$454 USD
As of October 30, 2026
Save £1,212 GBP (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,551 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 4.07ct lab-grown radiant diamond

This 4.07ct lab-grown radiant 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 LG673423536 or 673423536. Listed at 12 retailers as of October 29, 2026, with prices from £339 to £1,551, a £1,212 spread on the same certified stone. MOH London lists it at £1,551. 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

4.07
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.6°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG673423536
Dimensions11.36 × 7.82 × 5.17 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.36 mm7.82 mm4.07 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG673423536
Side View
Table 65.0%Crown 44.6°Girdle: STK-THKPavilion 34.4°Culet: NoneDepth 66.1%

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 30
Current: £1,551 GBP|Low: £339 GBP|High: £5,068 GBP|Avg: £1,396 GBP
MOH London
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
October 30, 2026
Retailer 5£339 GBP
Retailer 2£352 GBP
Retailer 4£379 GBP
Retailer 10£420 GBP
Retailer 13£468 GBP
Retailer 11£526 GBP
Retailer 3£658 GBP
Retailer 12£676 GBP
Retailer 9£695 GBP
Retailer 6£929 GBP
Retailer 15£1,046 GBP
Retailer 14£1,350 GBP
MOH London£1,551 GBP
Retailer 16£1,858 GBP
Retailer 7£3,650 GBP
Retailer 8£5,068 GBP

4 data points across 16 retailers

12 retailers£339 GBP to £1,551 GBP

A
Cheapest Retailer
-
£339 GBP
$454 USD
A
Retailer 2
-
£352 GBP
View
A
Retailer 3
-
£379 GBP
$508 USD
View
A
Retailer 4
-
£420 GBP
$563 USD
View
A
Retailer 5
-
£468 GBP
HK$4,900 HKD
View
A
Retailer 6
-
£526 GBP
$705 USD
View
B+
Retailer 7
-
£658 GBP
$882 USD
View
A
Retailer 8
-
£676 GBP
$906 USD
View
A
Retailer 9
-
£695 GBP
View
B+
Retailer 10
-
£1,046 GBP
$1,401 USD
View
B+
Retailer 11
-
£1,350 GBP
$1,809 USD
View
Most Expensive
B
MOH London
LG673423536 · Oct 29
£1,551 GBP
View
11 more retailers have this diamond
Prices start from £339 GBPSave up to £1,212 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
4.07ct Radiant
£339 GBP