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0.54ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG559281139

Shape and cutting style on the report: Round brilliant

Certificate IGI LG559281139

Diamond specifications and retailer prices

From £273 GBP
As of November 3, 2026
Save £448 GBP (62%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £720 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.54ct lab-grown round diamond

This 0.54ct lab-grown round sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG559281139 or 559281139. Listed at 3 retailers as of November 2, 2026, with prices from £273 to £720, a £448 spread on the same certified stone. MOH London lists it at £720. 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

0.54
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559281139
Dimensions5.29 × 5.27 × 3.20 mm
L/W Ratio1.00
Girdle conditionFaceted
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
5.29 mm5.27 mm0.54 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559281139
Side View
Table 57.5%Crown 33.9°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: £720 GBP|Low: £256 GBP|High: £729 GBP|Avg: £418 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
November 3, 2026
Retailer 2£273 GBP
Retailer 3£276 GBP
MOH London£720 GBP

41 data points across 3 retailers

3 retailers£273 GBP to £720 GBP

A
Cheapest Retailer
-
£273 GBP
A
Retailer 2
-
£276 GBP
$371 USD
View
Most Expensive
B
MOH London
LG559281139 · Nov 2
£720 GBP
View
2 more retailers have this diamond
Prices start from £273 GBPSave up to £448 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
0.54ct Round
£273 GBP