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Princess|Lab Grown|IGI

1.23ct F VS1 Princess Lab Grown Diamond

EX • F/VS1 • IGI LG837627382

Shape and cutting style on the report: Princess cut

Certificate IGI LG837627382

Diamond specifications and retailer prices

From £134 GBP
As of November 4, 2026
Save £643 GBP (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £777 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.23ct lab-grown princess diamond

This 1.23ct lab-grown princess sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG837627382 or 837627382. Listed at 9 retailers as of November 2, 2026, with prices from £134 to £777, a £643 spread on the same certified stone. MOH London lists it at £777. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.6°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837627382
Dimensions5.80 × 5.71 × 4.21 mm
L/W Ratio1.02
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.80 mm5.71 mm1.23 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837627382
Side View
Table 69.0%Crown 46.6°Girdle: MediumPavilion 38.7°Culet: NoneDepth 73.7%

Caratlytics Score

How it works →
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 4
Current: £777 GBP|Low: £132 GBP|High: £809 GBP|Avg: £407 GBP|-4.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6£134 GBP
Retailer 4£155 GBP
Retailer 7£199 GBP
Retailer 3£286 GBP
Retailer 2£405 GBP
Retailer 9£406 GBP
Retailer 10£534 GBP
Retailer 5£564 GBP
Retailer 8£576 GBP
MOH London£777 GBP

31 data points across 10 retailers

9 retailers£134 GBP to £777 GBP

A
Cheapest Retailer
-
£134 GBP
A
Retailer 2
-
£155 GBP
View
Retailer 3
-
£286 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£405 GBP
View
B+
Retailer 5
-
£406 GBP
View
B+
Retailer 6
-
£534 GBP
View
B
Retailer 7
-
£564 GBP
View
B
Retailer 8
-
£576 GBP
View
Most Expensive
B
MOH London
LG837627382 · Nov 2
£777 GBP
View
8 more retailers have this diamond
Prices start from £134 GBPSave up to £643 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 Princess
£134 GBP