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Radiant|Lab Grown|IGI

1.23ct F VS2 Radiant Lab Grown Diamond

VG • F/VS2 • IGI LG691548408

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

Certificate IGI LG691548408

Diamond specifications and retailer prices

From £264 GBP
As of November 3, 2026
Save £587 GBP (69%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £851 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG691548408 or 691548408. Listed at 9 retailers as of November 3, 2026, with prices from £264 to £851, a £587 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

1.23
Carat
F
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle29.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691548408
Dimensions8.17 × 5.25 × 3.26 mm
L/W Ratio1.56
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.17 mm5.25 mm1.23 ctF / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691548408
Side View
Table 58.0%Crown 36.7°Girdle: MED-STKPavilion 29.3°Culet: NoneDepth 62.1%

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 3
Current: £851 GBP|Low: £264 GBP|High: £865 GBP|Avg: £466 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 7£264 GBP
Retailer 5£293 GBP
Retailer 2£331 GBP
Retailer 6£350 GBP
Retailer 3£381 GBP
Retailer 4£481 GBP
Retailer 8£715 GBP
MOH London£851 GBP

43 data points across 8 retailers

9 retailers£264 GBP to £851 GBP

A
Cheapest Retailer
-
£264 GBP
A
Retailer 2
-
£293 GBP
View
A
Retailer 3
-
£331 GBP
View
B+
Retailer 4
-
£350 GBP
View
B+
Retailer 5
-
£381 GBP
View
Retailer 6
-
£443 GBP
View
Price last confirmed 66 days ago
Retailer 7
-
£481 GBP
View
Price last confirmed 29 days ago
Retailer 8
-
£715 GBP
View
Price last confirmed 18 days ago
Most Expensive
B
MOH London
LG691548408 · Nov 5
£851 GBP
View
8 more retailers have this diamond
Prices start from £264 GBPSave up to £587 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
1.23ct Radiant
£264 GBP