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Radiant|Lab Grown|IGI

1.02ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG845664629

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

Certificate IGI LG845664629

Diamond specifications and retailer prices

From £106 GBP
As of November 6, 2026
Save £320 GBP (75%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £426 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.02ct lab-grown radiant diamond

This 1.02ct lab-grown radiant 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 LG845664629 or 845664629. Listed at 3 retailers as of November 6, 2026, with prices from £106 to £426, a £320 spread on the same certified stone. Brilliant Earth lists it at £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

1.02
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.6°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845664629
Dimensions6.85 × 5.08 × 3.44 mm
L/W Ratio1.35
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.85 mm5.08 mm1.02 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845664629
Side View
Table 66.0%Crown 46.6°Girdle: Slightly ThickPavilion 35.9°Culet: NoneDepth 67.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £426 GBP|Low: £106 GBP|High: £426 GBP|Avg: £261 GBP
Brilliant Earth
Retailer 2
Retailer 3
November 6, 2026
Retailer 3£106 GBP
Retailer 2£202 GBP
Brilliant Earth£426 GBP

21 data points across 3 retailers

3 retailers£106 GBP to £426 GBP

A
Cheapest Retailer
-
£106 GBP
Final sale: no returns
A
Retailer 2
-
£202 GBP
View
Most Expensive
B
Brilliant Earth
22150424A · Nov 6
£426 GBP
$570 USD
View
2 more retailers have this diamond
Prices start from £106 GBPSave up to £320 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 Radiant
£106 GBP