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Round|Lab Grown|IGI

1.22ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG653409027

Shape and cutting style on the report: Round brilliant

Certificate IGI LG653409027

Diamond specifications and retailer prices

From £258 GBP
$346 USD
As of November 1, 2026
Save £468 GBP (64%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £726 GBP at MOH London · As of November 1, 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG653409027 or 653409027. Listed at 6 retailers as of November 1, 2026, with prices from £258 to £726, a £468 spread on the same certified stone. MOH London lists it at £726. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG653409027
Dimensions6.86 × 6.81 × 4.25 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
6.86 mm6.81 mm1.22 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG653409027
Side View
Table 56.0%Crown 35.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.2%

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 1
Current: £726 GBP|Low: £239 GBP|High: £734 GBP|Avg: £446 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3£258 GBP
Retailer 4£329 GBP
Retailer 2£358 GBP
Retailer 5£375 GBP
Retailer 6£629 GBP
MOH London£726 GBP

12 data points across 6 retailers

6 retailers£258 GBP to £726 GBP

B+
Cheapest Retailer
-
£258 GBP
$346 USD
A
Retailer 2
-
£329 GBP
$441 USD
View
B+
Retailer 3
-
£358 GBP
$480 USD
View
B+
Retailer 4
-
£375 GBP
$503 USD
View
B
Retailer 5
-
£629 GBP
$844 USD
View
Most Expensive
B
MOH London
LG653409027 · Nov 1
£726 GBP
View
5 more retailers have this diamond
Prices start from £258 GBPSave up to £468 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
£258 GBP