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Princess|Lab Grown|IGI

1.23ct F VS1 Princess Lab Grown Diamond

GD • F/VS1 • IGI LG706531171

Shape and cutting style on the report: Princess cut

Certificate IGI LG706531171

Diamond specifications and retailer prices

From £292 GBP
As of November 4, 2026
Save £476 GBP (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £768 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG706531171 or 706531171. Listed at 7 retailers as of November 4, 2026, with prices from £292 to £768, a £476 spread on the same certified stone. MOH London lists it at £768. 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
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG706531171
Dimensions5.85 × 5.70 × 4.15 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.85 mm5.70 mm1.23 ctF / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG706531171
Side View
Table 67.0%Crown 45°Girdle: Slightly ThickPavilion 37.5°Culet: NoneDepth 72.8%

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 4
Current: £768 GBP|Low: £290 GBP|High: £836 GBP|Avg: £441 GBP|-8.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3£292 GBP
Retailer 2£293 GBP
Retailer 4£331 GBP
Retailer 7£415 GBP
Retailer 6£479 GBP
Retailer 5£570 GBP
MOH London£768 GBP

42 data points across 7 retailers

7 retailers£292 GBP to £768 GBP

A
Cheapest Retailer
-
£292 GBP
A
Retailer 2
-
£293 GBP
View
B+
Retailer 3
-
£331 GBP
View
B+
Retailer 4
-
£415 GBP
View
Retailer 5
-
£479 GBP
View
Price last confirmed 9 days ago
B
Retailer 6
-
£570 GBP
View
Most Expensive
B
MOH London
LG706531171 · Nov 5
£768 GBP
View
6 more retailers have this diamond
Prices start from £292 GBPSave up to £476 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
£292 GBP