Radiant|Lab Grown|IGI

0.45ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG542237488

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

Certificate IGI LG542237488

Diamond specifications and retailer prices

From £84 GBP
$113 USD
As of November 2, 2026
Save £295 GBP (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £873 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.45ct lab-grown radiant diamond

This 0.45ct lab-grown radiant sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG542237488 or 542237488. Listed at 13 retailers as of October 31, 2026, with a 350% 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

0.45
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG542237488
Dimensions5.39 × 3.98 × 2.55 mm
L/W Ratio1.35
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
5.39 mm3.98 mm0.45 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG542237488
Side View
Table 62.0%Crown 33°Girdle: MED-STKPavilion 33.9°Culet: NoneDepth 64.1%

Caratlytics Score

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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 2
Current: £873 GBP|Low: £81 GBP|High: £884 GBP|Avg: £266 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7£84 GBP
Retailer 11£98 GBP
Retailer 8£111 GBP
Retailer 12£111 GBP
Retailer 5£179 GBP
Retailer 9£205 GBP
Retailer 2£211 GBP
Retailer 6£253 GBP
Retailer 3£274 GBP
Retailer 10£337 GBP
Retailer 4£379 GBP
MOH London£873 GBP

44 data points across 12 retailers

13 retailers£84 GBP to £379 GBP

A
Cheapest Retailer
-
£84 GBP
$113 USD
A
Retailer 2
-
£98 GBP
$131 USD
View
A
Retailer 3
-
£111 GBP
$149 USD
View
Retailer 4
-
£111 GBP
$149 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£179 GBP
$240 USD
View
B+
Retailer 6
-
£205 GBP
$275 USD
View
B+
Retailer 7
-
£211 GBP
View
B+
Retailer 8
-
£253 GBP
View
B+
Retailer 9
-
£274 GBP
$367 USD
View
B+
Retailer 10
-
£306 GBP
HK$3,200 HKD
View
B
Retailer 11
-
£337 GBP
$451 USD
View
B
Retailer 12
-
£379 GBP
$508 USD
View
Most Expensive
MOH London
LG542237488 · Nov 1
£873 GBP
View
Price under review
12 more retailers have this diamond
Prices start from £84 GBPSave up to £295 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
0.45ct Radiant
£84 GBP