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Princess|Lab Grown|IGI

3.09ct E SI1 Princess Lab Grown Diamond

ID • E/SI1 • IGI LG627440433

Shape and cutting style on the report: Princess cut

Certificate IGI LG627440433

Diamond specifications and retailer prices

From £270 GBP
$360 USD
As of October 30, 2026
Save £809 GBP (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,079 GBP at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 3.09ct lab-grown princess diamond

This 3.09ct 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 LG627440433 or 627440433. Listed at 11 retailers as of October 28, 2026, with prices from £270 to £1,079, a £809 spread on the same certified stone. NZ Jewellers lists it at £1,079. 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

3.09
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627440433
Dimensions8.12 × 8.03 × 5.62 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.12 mm8.03 mm3.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627440433
Side View
Table 68.0%Crown 40.4°Girdle: MediumPavilion 38°Culet: NoneDepth 70.0%

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: £1,079 GBP|Low: £270 GBP|High: £3,552 GBP|Avg: £1,142 GBP
NZ Jewellers
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
October 30, 2026
Retailer 9£270 GBP
Retailer 3£314 GBP
Retailer 11£336 GBP
Retailer 13£375 GBP
Retailer 2£412 GBP
Retailer 10£451 GBP
Retailer 15£537 GBP
Retailer 12£574 GBP
Retailer 8£605 GBP
Retailer 4£675 GBP
Retailer 14£766 GBP
NZ Jewellers£1,079 GBP
Retailer 6£1,997 GBP
Retailer 5£2,927 GBP
Retailer 7£3,552 GBP

4 data points across 15 retailers

11 retailers£270 GBP to £1,079 GBP

A
Cheapest Retailer
-
£270 GBP
$360 USD
A
Retailer 2
-
£314 GBP
$418 USD
View
A
Retailer 3
-
£336 GBP
$447 USD
View
A
Retailer 4
-
£375 GBP
HK$3,900 HKD
View
A
Retailer 5
-
£412 GBP
View
A
Retailer 6
-
£451 GBP
$600 USD
View
B+
Retailer 7
-
£537 GBP
$715 USD
View
A
Retailer 8
-
£574 GBP
$764 USD
View
A
Retailer 9
-
£605 GBP
View
B+
Retailer 10
-
£766 GBP
$1,020 USD
View
Most Expensive
B
NZ Jewellers
c03d1974-91bb-40a1-879e-d7938d21c859 · Oct 28
£1,079 GBP
$1,437 USD
View
10 more retailers have this diamond
Prices start from £270 GBPSave up to £809 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
3.09ct Princess
£270 GBP