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Radiant|Lab Grown|IGI

1.04ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG797631781

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

Certificate IGI LG797631781

Diamond specifications and retailer prices

From £215 GBP
As of November 7, 2026
Save £237 GBP (52%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £601 GBP at MOH London · As of October 19, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG797631781 or 797631781. Listed at 8 retailers as of November 6, 2026, with a 110% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle29.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797631781
Dimensions6.99 × 4.54 × 3.44 mm
L/W Ratio1.54
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.99 mm4.54 mm1.04 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG797631781
Side View
Table 65.0%Crown 38°Girdle: Slightly ThickPavilion 29.8°Culet: NoneDepth 75.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 7
Current: £601 GBP|Low: £210 GBP|High: £604 GBP|Avg: £312 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 2£215 GBP
Retailer 3£227 GBP
Retailer 4£232 GBP
Retailer 6£238 GBP
Retailer 5£242 GBP
Retailer 7£368 GBP
MOH London£601 GBP

40 data points across 7 retailers

8 retailers£215 GBP to £452 GBP

A
Cheapest Retailer
-
£215 GBP
A
Retailer 2
-
£227 GBP
View
A
Retailer 3
-
£232 GBP
View
A
Retailer 4
-
£238 GBP
View
A
Retailer 5
-
£242 GBP
View
B+
Retailer 6
-
£368 GBP
View
B
Retailer 7
-
£452 GBP
View
Most Expensive
MOH London
LG797631781 · Oct 19
£601 GBP
View
Price last confirmed 19 days ago
7 more retailers have this diamond
Prices start from £215 GBPSave up to £237 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
£215 GBP