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Radiant|Lab Grown|IGI

0.74ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG617440323

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

Certificate IGI LG617440323

Diamond specifications and retailer prices

From £149 GBP
$198 USD
As of October 25, 2026
Save £241 GBP (62%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £921 GBP at MOH London · As of October 8, 2026
View at MOH London

About this 0.74ct lab-grown radiant diamond

This 0.74ct lab-grown radiant sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG617440323 or 617440323. Listed at 6 retailers as of October 25, 2026, with a 162% 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

0.74
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.6°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617440323
Dimensions6.58 × 4.43 × 2.97 mm
L/W Ratio1.49
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
6.58 mm4.43 mm0.74 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617440323
Side View
Table 72.0%Crown 44.6°Girdle: Slightly ThickPavilion 35°Culet: NoneDepth 67.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: £921 GBP|Low: £149 GBP|High: £921 GBP|Avg: £366 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 9, 2026
Retailer 6£149 GBP
Retailer 5£213 GBP
Retailer 7£246 GBP
Retailer 4£246 GBP
Retailer 3£288 GBP
Retailer 9£331 GBP
Retailer 2£353 GBP
Retailer 8£461 GBP
MOH London£921 GBP

2 data points across 9 retailers

6 retailers£149 GBP to £390 GBP

B+
Cheapest Retailer
-
£149 GBP
$198 USD
Retailer 2
-
£246 GBP
View
Price last confirmed 21 days ago
B+
Retailer 3
-
£331 GBP
View
Retailer 4
-
£353 GBP
$470 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
£390 GBP
View
Most Expensive
MOH London
LG617440323 · Oct 8
£921 GBP
View
Price last confirmed 21 days ago
5 more retailers have this diamond
Prices start from £149 GBPSave up to £241 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.

B+
0.74ct Radiant
£149 GBP