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Radiant|Lab Grown|IGI

1.04ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG731503685

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

Certificate IGI LG731503685

Diamond specifications and retailer prices

From £86 GBP
As of November 6, 2026
Save £800 GBP (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £886 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.04ct lab-grown radiant diamond

This 1.04ct 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 LG731503685 or 731503685. Listed at 14 retailers as of November 2, 2026, with prices from £86 to £886, a £800 spread on the same certified stone. MOH London lists it at £886. 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

1.04
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.1°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731503685
Dimensions7.24 × 4.90 × 3.33 mm
L/W Ratio1.48
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.24 mm4.90 mm1.04 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731503685
Side View
Table 66.0%Crown 45.1°Girdle: MED-STKPavilion 35.6°Culet: NoneDepth 68.0%

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: Nov 6
Current: £886 GBP|Low: £86 GBP|High: £886 GBP|Avg: £288 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
Retailer 17
November 6, 2026
Retailer 13£86 GBP
Retailer 6£99 GBP
Retailer 14£113 GBP
Retailer 5£124 GBP
Retailer 10£137 GBP
Retailer 2£195 GBP
Retailer 4£201 GBP
Retailer 3£208 GBP
Retailer 11£213 GBP
Retailer 17£219 GBP
Retailer 15£293 GBP
Retailer 16£341 GBP
Retailer 12£380 GBP
Retailer 8£384 GBP
Retailer 7£469 GBP
Retailer 9£762 GBP
MOH London£886 GBP

10 data points across 17 retailers

14 retailers£86 GBP to £886 GBP

A
Cheapest Retailer
-
£86 GBP
A
Retailer 2
-
£99 GBP
View
A
Retailer 3
-
£113 GBP
View
A
Retailer 4
-
£124 GBP
View
A
Retailer 5
-
£137 GBP
View
A
Retailer 6
-
£195 GBP
View
A
Retailer 7
-
£201 GBP
View
B+
Retailer 8
-
£208 GBP
View
A
Retailer 9
-
£213 GBP
View
A
Retailer 10
-
£219 GBP
View
B+
Retailer 11
-
£293 GBP
View
B+
Retailer 12
-
£341 GBP
View
B+
Retailer 13
-
£380 GBP
View
Most Expensive
B
MOH London
LG731503685 · Nov 2
£886 GBP
View
13 more retailers have this diamond
Prices start from £86 GBPSave up to £800 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
1.04ct Radiant
£86 GBP