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Princess|Lab Grown|IGI

1.02ct E SI1 Princess Lab Grown Diamond

EX • E/SI1 • IGI LG844645235

Shape and cutting style on the report: Princess cut

Certificate IGI LG844645235

Diamond specifications and retailer prices

From £122 GBP
As of November 5, 2026
Save £309 GBP (72%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £431 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.02ct lab-grown princess diamond

This 1.02ct lab-grown princess sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG844645235 or 844645235. Listed at 3 retailers as of November 2, 2026, with prices from £122 to £431, a £309 spread on the same certified stone. Brilliant Earth lists it at £431. 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

1.02
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844645235
Dimensions5.56 × 5.52 × 3.79 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.56 mm5.52 mm1.02 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844645235
Side View
Table 71.0%Crown 45.7°Girdle: MediumPavilion 38.2°Culet: NoneDepth 68.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £241 GBP|Low: £122 GBP|High: £249 GBP|Avg: £193 GBP|-2.4%
Retailer 1
Retailer 2
November 3, 2026
Retailer 2£122 GBP
Retailer 1£241 GBP

20 data points across 2 retailers

3 retailers£122 GBP to £431 GBP

A
Cheapest Retailer
-
£122 GBP
Final sale: no returns
B+
Retailer 2
-
£241 GBP
View
Most Expensive
B
Brilliant Earth
22002857A · Nov 2
£431 GBP
$580 USD
View
2 more retailers have this diamond
Prices start from £122 GBPSave up to £309 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
1.02ct Princess
£122 GBP