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Princess|Lab Grown|IGI

1.20ct F VVS2 Princess Lab Grown Diamond

VG • F/VVS2 • IGI LG840633771

Shape and cutting style on the report: Princess cut

Certificate IGI LG840633771

Diamond specifications and retailer prices

From £317 GBP
As of November 4, 2026
Save £13 GBP (4%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £857 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.2ct lab-grown princess diamond

This 1.2ct lab-grown princess sits in the classic one-carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG840633771 or 840633771. Listed at 4 retailers as of November 4, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.20
Carat
F
Colour
VVS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840633771
Dimensions5.89 × 5.81 × 3.97 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.89 mm5.81 mm1.20 ctF / VVS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840633771
Side View
Table 73.0%Crown 43.5°Girdle: MediumPavilion 38.2°CuletDepth 68.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £857 GBP|Low: £313 GBP|High: £872 GBP|Avg: £495 GBP|-1.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 3£317 GBP
Retailer 2£330 GBP
Retailer 4£511 GBP
MOH London£857 GBP

21 data points across 4 retailers

4 retailers£317 GBP to £330 GBP

A
Cheapest Retailer
-
£317 GBP
A
Retailer 2
-
£330 GBP
View
Retailer 3
-
£511 GBP
View
Price last confirmed 11 days ago
Most Expensive
MOH London
LG840633771 · Oct 29
£857 GBP
View
Price last confirmed 7 days ago
3 more retailers have this diamond
Prices start from £317 GBPSave up to £13 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
1.20ct Princess
£317 GBP