CaratHunter
Plans
Round|Lab Grown|IGI

1.24ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG794661856

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794661856

Diamond specifications and retailer prices

From £273 GBP
As of November 6, 2026
Save £451 GBP (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £724 GBP at MOH London · As of November 4, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG794661856 or 794661856. Listed at 7 retailers as of November 4, 2026, with prices from £273 to £724, a £451 spread on the same certified stone. MOH London lists it at £724. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794661856
Dimensions6.97 × 6.93 × 4.18 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
6.97 mm6.93 mm1.24 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794661856
Side View
Table 58.0%Crown 33.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £724 GBP|Low: £273 GBP|High: £831 GBP|Avg: £420 GBP|-11.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2£273 GBP
Retailer 5£279 GBP
Retailer 6£288 GBP
Retailer 3£349 GBP
Retailer 4£397 GBP
Retailer 7£539 GBP
MOH London£724 GBP

42 data points across 7 retailers

7 retailers£273 GBP to £724 GBP

A
Cheapest Retailer
-
£273 GBP
A
Retailer 2
-
£279 GBP
View
A
Retailer 3
-
£288 GBP
View
B+
Retailer 4
-
£349 GBP
View
B+
Retailer 5
-
£397 GBP
View
B
Retailer 6
-
£539 GBP
View
Most Expensive
B
MOH London
LG794661856 · Nov 4
£724 GBP
View
6 more retailers have this diamond
Prices start from £273 GBPSave up to £451 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
£273 GBP