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Round|Lab Grown|IGI

1.22ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG804642981

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804642981

Diamond specifications and retailer prices

From £122 GBP
As of November 5, 2026
Save £586 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £708 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.22ct lab-grown round diamond

This 1.22ct 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 LG804642981 or 804642981. Listed at 17 retailers as of November 2, 2026, with prices from £122 to £708, a £586 spread on the same certified stone. MOH London lists it at £708. 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

1.22
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804642981
Dimensions6.94 × 6.92 × 4.19 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.94 mm6.92 mm1.22 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804642981
Side View
Table 58.0%Crown 32.7°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.4%

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: Nov 5
Current: £708 GBP|Low: £117 GBP|High: £716 GBP|Avg: £336 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8£122 GBP
Retailer 9£152 GBP
Retailer 2£262 GBP
Retailer 3£264 GBP
Retailer 4£265 GBP
Retailer 10£272 GBP
Retailer 6£338 GBP
Retailer 5£446 GBP
Retailer 7£514 GBP
MOH London£708 GBP

40 data points across 10 retailers

17 retailers£122 GBP to £708 GBP

A
Cheapest Retailer
-
£122 GBP
A
Retailer 2
-
£142 GBP
View
Retailer 3
-
£152 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
£152 GBP
View
A
Retailer 5
-
£262 GBP
View
A
Retailer 6
-
£264 GBP
View
A
Retailer 7
-
£265 GBP
View
A
Retailer 8
-
£272 GBP
View
A
Retailer 9
-
£279 GBP
View
B+
Retailer 10
-
£337 GBP
View
B+
Retailer 11
-
£338 GBP
View
B
Retailer 12
-
£403 GBP
View
B+
Retailer 13
-
£446 GBP
View
B
Retailer 14
-
£487 GBP
View
B
Retailer 15
-
£514 GBP
View
B
Retailer 16
-
£527 GBP
View
Most Expensive
B
MOH London
LG804642981 · Nov 2
£708 GBP
View
16 more retailers have this diamond
Prices start from £122 GBPSave up to £586 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
1.22ct Round
£122 GBP