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Round|Lab Grown|IGI

0.45ct G SI2 Round Lab Grown Diamond

EX • G/SI2 • IGI LG455036285

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455036285

Diamond specifications and retailer prices

From £164 GBP
$218 USD
As of October 29, 2026
Save £656 GBP (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £819 GBP at MOH London · As of October 29, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG455036285 or 455036285. Listed at 9 retailers as of October 29, 2026, with prices from £164 to £819, a £656 spread on the same certified stone. MOH London lists it at £819. 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
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455036285
Dimensions4.99 × 5.03 × 2.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Blue Nuance
Top View
4.99 mm5.03 mm0.45 ctG / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG455036285
Side View
Table 60.0%Crown 33.4°Girdle: THN-STKPavilion 40.4°Culet: NoneDepth 59.0%

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 29
Current: £819 GBP|Low: £158 GBP|High: £824 GBP|Avg: £371 GBP|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 3£164 GBP
Retailer 7£190 GBP
Retailer 5£204 GBP
Retailer 4£218 GBP
Retailer 6£348 GBP
Retailer 2£396 GBP
Retailer 8£421 GBP
Retailer 10£425 GBP
Retailer 9£468 GBP
MOH London£819 GBP

15 data points across 10 retailers

9 retailers£164 GBP to £819 GBP

A
Cheapest Retailer
-
£164 GBP
$218 USD
A
Retailer 2
-
£190 GBP
$253 USD
View
A
Retailer 3
-
£204 GBP
$271 USD
View
A
Retailer 4
-
£204 GBP
$271 USD
View
B+
Retailer 5
-
£218 GBP
$290 USD
View
B+
Retailer 6
-
£348 GBP
$464 USD
View
B+
Retailer 7
-
£396 GBP
€502 EUR
View
B
Retailer 8
-
£653 GBP
$870 USD
View
Most Expensive
B
MOH London
LG455036285 · Oct 29
£819 GBP
View
8 more retailers have this diamond
Prices start from £164 GBPSave up to £656 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
£164 GBP