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Princess|Lab Grown|IGI

1.23ct H VS1 Princess Lab Grown Diamond

ID • H/VS1 • IGI LG625480470

Shape and cutting style on the report: Princess cut

Certificate IGI LG625480470

Diamond specifications and retailer prices

From £267 GBP
As of November 3, 2026
Save £601 GBP (69%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £867 GBP at MOH London · As of November 5, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG625480470 or 625480470. Listed at 6 retailers as of November 3, 2026, with prices from £267 to £867, a £601 spread on the same certified stone. MOH London lists it at £867. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625480470
Dimensions5.86 × 5.73 × 4.14 mm
L/W Ratio1.02
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
5.86 mm5.73 mm1.23 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625480470
Side View
Table 69.0%Crown 42.5°Girdle: MediumPavilion 37.9°Culet: NoneDepth 72.3%

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 3
Current: £867 GBP|Low: £267 GBP|High: £881 GBP|Avg: £499 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 5£267 GBP
Retailer 3£298 GBP
Retailer 4£352 GBP
Retailer 2£426 GBP
Retailer 7£548 GBP
Retailer 6£726 GBP
MOH London£867 GBP

11 data points across 7 retailers

6 retailers£267 GBP to £867 GBP

A
Cheapest Retailer
-
£267 GBP
A
Retailer 2
-
£298 GBP
View
A
Retailer 3
-
£352 GBP
View
Retailer 4
-
£426 GBP
View
Price last confirmed 8 days ago
B
Retailer 5
-
£726 GBP
View
Most Expensive
B
MOH London
LG625480470 · Nov 5
£867 GBP
View
5 more retailers have this diamond
Prices start from £267 GBPSave up to £601 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
£267 GBP