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Princess|Lab Grown|IGI

1.23ct G VS1 Princess Lab Grown Diamond

ID • G/VS1 • IGI LG675588809

Shape and cutting style on the report: Princess cut

Certificate IGI LG675588809

Diamond specifications and retailer prices

From £301 GBP
As of November 4, 2026
Save £495 GBP (62%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £796 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG675588809 or 675588809. Listed at 11 retailers as of November 4, 2026, with prices from £301 to £796, a £495 spread on the same certified stone. MOH London lists it at £796. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.9°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675588809
Dimensions5.88 × 5.65 × 4.15 mm
L/W Ratio1.04
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.88 mm5.65 mm1.23 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675588809
Side View
Table 72.0%Crown 48.9°Girdle: MediumPavilion 37.7°Culet: NoneDepth 73.5%

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: £796 GBP|Low: £282 GBP|High: £808 GBP|Avg: £450 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 6£301 GBP
Retailer 2£306 GBP
Retailer 3£322 GBP
Retailer 9£333 GBP
Retailer 7£354 GBP
Retailer 4£444 GBP
Retailer 8£561 GBP
Retailer 5£630 GBP
MOH London£796 GBP

44 data points across 9 retailers

11 retailers£301 GBP to £796 GBP

A
Cheapest Retailer
-
£301 GBP
A
Retailer 2
-
£306 GBP
View
A
Retailer 3
-
£322 GBP
View
A
Retailer 4
-
£333 GBP
View
A
Retailer 5
-
£354 GBP
View
Retailer 6
-
£444 GBP
View
Price last confirmed 15 days ago
Retailer 7
-
£456 GBP
View
Price last confirmed 36 days ago
B+
Retailer 8
-
£572 GBP
View
B
Retailer 9
-
£588 GBP
View
B
Retailer 10
-
£630 GBP
View
Most Expensive
B
MOH London
LG675588809 · Nov 5
£796 GBP
View
10 more retailers have this diamond
Prices start from £301 GBPSave up to £495 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
£301 GBP