Princess|Lab Grown|IGI

1.23ct E VS1 Princess Lab Grown Diamond

EX • E/VS1 • IGI LG706531181

Shape and cutting style on the report: Princess cut

Certificate IGI LG706531181

Diamond specifications and retailer prices

From £313 GBP
$419 USD
As of October 30, 2026
Save £527 GBP (63%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £840 GBP at MOH London · As of October 26, 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG706531181 or 706531181. Listed at 6 retailers as of October 26, 2026, with prices from £313 to £840, a £527 spread on the same certified stone. MOH London lists it at £840. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG706531181
Dimensions5.81 × 5.77 × 4.25 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.81 mm5.77 mm1.23 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG706531181
Side View
Table 71.0%Crown 43.6°Girdle: MediumPavilion 39.6°Culet: NoneDepth 73.7%

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: Oct 30
Current: £840 GBP|Low: £294 GBP|High: £848 GBP|Avg: £436 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 3£313 GBP
Retailer 2£327 GBP
Retailer 5£334 GBP
Retailer 4£419 GBP
MOH London£840 GBP

41 data points across 5 retailers

6 retailers£313 GBP to £840 GBP

A
Cheapest Retailer
-
£313 GBP
$419 USD
A
Retailer 2
-
£327 GBP
View
A
Retailer 3
-
£334 GBP
$447 USD
View
B+
Retailer 4
-
£419 GBP
$562 USD
View
B
Retailer 5
-
£617 GBP
$826 USD
View
Most Expensive
B
MOH London
LG706531181 · Oct 26
£840 GBP
View
5 more retailers have this diamond
Prices start from £313 GBPSave up to £527 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
£313 GBP