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Princess|Lab Grown|IGI

1.20ct F VVS1 Princess Lab Grown Diamond

ID • F/VVS1 • IGI LG817630307

Shape and cutting style on the report: Princess cut

Certificate IGI LG817630307

Diamond specifications and retailer prices

From £325 GBP
As of November 6, 2026
Save £551 GBP (63%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £876 GBP at MOH London · As of November 2, 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG817630307 or 817630307. Listed at 9 retailers as of November 2, 2026, with prices from £325 to £876, a £551 spread on the same certified stone. MOH London lists it at £876. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.9°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817630307
Dimensions5.84 × 5.79 × 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
5.84 mm5.79 mm1.20 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817630307
Side View
Table 69.0%Crown 42.9°Girdle: MediumPavilion 36.5°Culet: NoneDepth 68.6%

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 6
Current: £876 GBP|Low: £322 GBP|High: £890 GBP|Avg: £515 GBP|+13.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£325 GBP
Retailer 2£340 GBP
Retailer 4£345 GBP
Retailer 8£419 GBP
Retailer 7£427 GBP
Retailer 6£609 GBP
Retailer 3£642 GBP
Retailer 5£717 GBP
MOH London£876 GBP

45 data points across 9 retailers

9 retailers£325 GBP to £876 GBP

A
Cheapest Retailer
-
£325 GBP
A
Retailer 2
-
£340 GBP
View
Retailer 3
-
£345 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£419 GBP
View
B+
Retailer 5
-
£427 GBP
View
Retailer 6
-
£609 GBP
View
Price last confirmed 12 days ago
B
Retailer 7
-
£642 GBP
View
B
Retailer 8
-
£717 GBP
View
Most Expensive
B
MOH London
LG817630307 · Nov 2
£876 GBP
View
8 more retailers have this diamond
Prices start from £325 GBPSave up to £551 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
£325 GBP