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Marquise|Lab Grown|IGI

1.25ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG843699084

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843699084

Diamond specifications and retailer prices

From £238 GBP
$320 USD
As of November 1, 2026
Save £589 GBP (71%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £827 GBP at MOH London · As of October 29, 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 LG843699084 or 843699084. Listed at 5 retailers as of October 29, 2026, with prices from £238 to £827, a £589 spread on the same certified stone. MOH London lists it at £827. 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 angle32.6°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843699084
Dimensions11.24 × 5.60 × 3.46 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.24 mm5.60 mm1.25 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843699084
Side View
Table 58.0%Crown 32.6°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 61.8%

Caratlytics Score

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

Last verified: Nov 1
Current: £827 GBP|Low: £238 GBP|High: £827 GBP|Avg: £459 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5£238 GBP
Retailer 2£317 GBP
Retailer 3£344 GBP
Retailer 4£605 GBP
MOH London£827 GBP

19 data points across 5 retailers

5 retailers£238 GBP to £827 GBP

B+
Cheapest Retailer
-
£238 GBP
$320 USD
A
Retailer 2
-
£317 GBP
View
A
Retailer 3
-
£344 GBP
$462 USD
View
B
Retailer 4
-
£605 GBP
$813 USD
View
Most Expensive
B
MOH London
LG843699084 · Oct 29
£827 GBP
View
4 more retailers have this diamond
Prices start from £238 GBPSave up to £589 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
£238 GBP