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Princess|Lab Grown|IGI

4.08ct E SI1 Princess Lab Grown Diamond

ID • E/SI1 • IGI LG649423356

Shape and cutting style on the report: Princess cut

Certificate IGI LG649423356

Diamond specifications and retailer prices

From £344 GBP
$458 USD
As of October 27, 2026
Save £2,082 GBP (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,426 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.08ct lab-grown princess diamond

This 4.08ct lab-grown princess 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 LG649423356 or 649423356. Listed at 16 retailers as of October 27, 2026, with prices from £344 to £2,426, a £2,082 spread on the same certified stone. Brilliant Earth lists it at £2,426. 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

4.08
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG649423356
Dimensions8.61 × 8.56 × 6.20 mm
L/W Ratio1.01
Culet sizePointed
Top View
8.61 mm8.56 mm4.08 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG649423356
Side View
Table 70.0%Crown 44.3°Girdle: MediumPavilion 38.2°Culet: NoneDepth 72.4%

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 27
Current: £2,426 GBP|Low: £330 GBP|High: £3,056 GBP|Avg: £942 GBP|-20.6%
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
October 29, 2026
Retailer 15£344 GBP
Retailer 14£358 GBP
Retailer 11£385 GBP
Retailer 3£427 GBP
Retailer 5£427 GBP
Retailer 4£646 GBP
Retailer 6£667 GBP
Retailer 9£691 GBP
Retailer 2£704 GBP
Retailer 7£737 GBP
Retailer 8£1,057 GBP
Retailer 12£1,147 GBP
Retailer 16£1,371 GBP
Retailer 10£1,569 GBP
Retailer 13£1,761 GBP
Brilliant Earth£2,426 GBP

39 data points across 16 retailers

16 retailers£344 GBP to £2,426 GBP

A
Cheapest Retailer
-
£344 GBP
$458 USD
A
Retailer 2
-
£358 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
£385 GBP
$513 USD
View
A
Retailer 4
-
£427 GBP
$568 USD
View
A
Retailer 5
-
£427 GBP
$568 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
£646 GBP
$860 USD
View
B+
Retailer 7
-
£667 GBP
$888 USD
View
A
Retailer 8
-
£691 GBP
€877 EUR
View
A
Retailer 9
-
£704 GBP
View
A
Retailer 10
-
£737 GBP
$982 USD
View
B+
Retailer 11
-
£1,057 GBP
$1,408 USD
View
B+
Retailer 12
-
£1,147 GBP
$1,527 USD
View
B+
Retailer 13
-
£1,371 GBP
$1,826 USD
View
B+
Retailer 14
-
£1,569 GBP
View
B
Retailer 15
-
£1,761 GBP
$2,345 USD
View
Most Expensive
B
Brilliant Earth
11617016A · Oct 29
£2,426 GBP
$3,230 USD
View
15 more retailers have this diamond
Prices start from £344 GBPSave up to £2,082 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
4.08ct Princess
£344 GBP