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Radiant|Lab Grown|IGI

1.22ct G VS1 Radiant Lab Grown Diamond

VG • G/VS1 • IGI LG625480575

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG625480575

Diamond specifications and retailer prices

From £255 GBP
As of November 5, 2026
Save £596 GBP (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £851 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.22ct lab-grown radiant diamond

This 1.22ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG625480575 or 625480575. Listed at 9 retailers as of November 2, 2026, with prices from £255 to £851, a £596 spread on the same certified stone. MOH London lists it at £851. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.22
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625480575
Dimensions7.36 × 5.38 × 3.69 mm
L/W Ratio1.37
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
7.36 mm5.38 mm1.22 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625480575
Side View
Table 64.0%Crown 41.3°Girdle: MED-STKPavilion 35.2°Culet: NoneDepth 68.6%

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: £851 GBP|Low: £255 GBP|High: £861 GBP|Avg: £444 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 7£255 GBP
Retailer 5£292 GBP
Retailer 3£314 GBP
Retailer 2£329 GBP
Retailer 6£349 GBP
Retailer 4£453 GBP
Retailer 8£713 GBP
MOH London£851 GBP

43 data points across 8 retailers

9 retailers£255 GBP to £851 GBP

A
Cheapest Retailer
-
£255 GBP
A
Retailer 2
-
£292 GBP
View
A
Retailer 3
-
£314 GBP
View
A
Retailer 4
-
£329 GBP
View
B+
Retailer 5
-
£349 GBP
View
Retailer 6
-
£453 GBP
View
Price last confirmed 15 days ago
B
Retailer 7
-
£507 GBP
View
B
Retailer 8
-
£713 GBP
View
Most Expensive
B
MOH London
LG625480575 · Nov 2
£851 GBP
View
8 more retailers have this diamond
Prices start from £255 GBPSave up to £596 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 Radiant
£255 GBP