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Round|Lab Grown|IGI

1.24ct G SI2 Round Lab Grown Diamond

ID • G/SI2 • IGI LG515236947

Shape and cutting style on the report: Round brilliant

Certificate IGI LG515236947

Diamond specifications and retailer prices

From £217 GBP
As of November 5, 2026
Save £530 GBP (71%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £747 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.24ct lab-grown round diamond

This 1.24ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG515236947 or 515236947. Listed at 4 retailers as of November 5, 2026, with prices from £217 to £747, a £530 spread on the same certified stone. MOH London lists it at £747. 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

1.24
Carat
G
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515236947
Dimensions6.92 × 6.83 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type IIa
Top View
6.92 mm6.83 mm1.24 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG515236947
Side View
Table 56.0%Crown 35.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £747 GBP|Low: £217 GBP|High: £759 GBP|Avg: £382 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4£217 GBP
Retailer 2£283 GBP
Retailer 3£285 GBP
MOH London£747 GBP

42 data points across 4 retailers

4 retailers£217 GBP to £747 GBP

A
Cheapest Retailer
-
£217 GBP
B+
Retailer 2
-
£283 GBP
View
B+
Retailer 3
-
£285 GBP
View
Most Expensive
B
MOH London
LG515236947 · Nov 5
£747 GBP
View
3 more retailers have this diamond
Prices start from £217 GBPSave up to £530 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
1.24ct Round
£217 GBP