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Round|Lab Grown|IGI

0.45ct E SI2 Round Lab Grown Diamond

EX • E/SI2 • IGI LG665428271

Shape and cutting style on the report: Round brilliant

Certificate IGI LG665428271

Diamond specifications and retailer prices

From £70 GBP
$93 USD
As of October 27, 2026
Save £479 GBP (87%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £548 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 0.45ct lab-grown round diamond

This 0.45ct lab-grown round sits in the sub-half-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG665428271 or 665428271. Listed at 10 retailers as of October 25, 2026, with prices from £70 to £548, a £479 spread on the same certified stone. MOH London lists it at £548. 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665428271
Dimensions4.88 × 4.85 × 3.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
4.88 mm4.85 mm0.45 ctE / SI2
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG665428271
Side View
Table 61.0%Crown 35.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.0%

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: Oct 27
Current: £548 GBP|Low: £61 GBP|High: £570 GBP|Avg: £204 GBP|-2.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 25, 2026
Retailer 2£70 GBP
Retailer 7£80 GBP
Retailer 3£116 GBP
Retailer 4£155 GBP
Retailer 6£163 GBP
Retailer 10£165 GBP
Retailer 8£165 GBP
Retailer 9£210 GBP
Retailer 5£249 GBP
MOH London£548 GBP

16 data points across 10 retailers

10 retailers£70 GBP to £548 GBP

A
Retailer 1
-
£59 GBP
$79 USD
Price last confirmed 28 days ago
A
Retailer 2
-
£70 GBP
$93 USD
View
A
Retailer 3
-
£80 GBP
$106 USD
View
A
Retailer 4
-
£82 GBP
$109 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
£116 GBP
$155 USD
View
A
Retailer 6
-
£163 GBP
$217 USD
View
A
Retailer 7
-
£165 GBP
$220 USD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
£246 GBP
$328 USD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
£249 GBP
$331 USD
View
Most Expensive
B
MOH London
LG665428271 · Oct 25
£548 GBP
View
9 more retailers have this diamond
Prices start from £70 GBPSave up to £479 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 Round
£70 GBP