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Marquise|Lab Grown|IGI

1.25ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG843699133

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843699133

Diamond specifications and retailer prices

From £239 GBP
$320 USD
As of November 1, 2026
Save £585 GBP (71%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £824 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.25ct lab-grown marquise diamond

This 1.25ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843699133 or 843699133. Listed at 5 retailers as of November 1, 2026, with prices from £239 to £824, a £585 spread on the same certified stone. MOH London lists it at £824. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.5°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843699133
Dimensions11.89 × 5.63 × 3.33 mm
L/W Ratio2.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.89 mm5.63 mm1.25 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843699133
Side View
Table 58.0%Crown 30.5°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 59.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £824 GBP|Low: £239 GBP|High: £828 GBP|Avg: £455 GBP|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5£239 GBP
Retailer 2£318 GBP
Retailer 3£345 GBP
Retailer 4£606 GBP
MOH London£824 GBP

19 data points across 5 retailers

5 retailers£239 GBP to £824 GBP

B+
Cheapest Retailer
-
£239 GBP
$320 USD
A
Retailer 2
-
£318 GBP
View
A
Retailer 3
-
£345 GBP
$462 USD
View
B
Retailer 4
-
£606 GBP
$813 USD
View
Most Expensive
B
MOH London
LG843699133 · Nov 1
£824 GBP
View
4 more retailers have this diamond
Prices start from £239 GBPSave up to £585 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
1.25ct Marquise
£239 GBP