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Princess|Lab Grown|IGI

1.23ct F VVS2 Princess Lab Grown Diamond

ID • F/VVS2 • IGI LG807639720

Shape and cutting style on the report: Princess cut

Certificate IGI LG807639720

Diamond specifications and retailer prices

From £241 GBP
As of November 4, 2026
Save £707 GBP (75%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £948 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG807639720 or 807639720. Listed at 8 retailers as of November 4, 2026, with prices from £241 to £948, a £707 spread on the same certified stone. Brilliant Earth lists it at £948. 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
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807639720
Dimensions5.91 × 5.77 × 4.28 mm
L/W Ratio1.02
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.91 mm5.77 mm1.23 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807639720
Side View
Table 69.0%Crown 41.1°Girdle: Slightly ThickPavilion 39.3°Culet: NoneDepth 74.2%

Caratlytics Score

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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: £948 GBP|Low: £237 GBP|High: £948 GBP|Avg: £514 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5£241 GBP
Retailer 2£317 GBP
Retailer 4£323 GBP
Retailer 7£356 GBP
Retailer 6£500 GBP
Retailer 8£604 GBP
Retailer 3£821 GBP
Brilliant Earth£948 GBP

33 data points across 8 retailers

8 retailers£241 GBP to £948 GBP

B+
Cheapest Retailer
-
£241 GBP
A
Retailer 2
-
£317 GBP
View
A
Retailer 3
-
£323 GBP
View
A
Retailer 4
-
£356 GBP
View
Retailer 5
-
£500 GBP
View
Price last confirmed 25 days ago
B+
Retailer 6
-
£604 GBP
View
B
Retailer 7
-
£821 GBP
View
Most Expensive
B
Brilliant Earth
20903173A · Nov 4
£948 GBP
$1,280 USD
View
7 more retailers have this diamond
Prices start from £241 GBPSave up to £707 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
£241 GBP