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Marquise|Lab Grown|IGI

1.31ct F VS2 Marquise Lab Grown Diamond

ID • F/VS2 • IGI LG758519401

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG758519401

Diamond specifications and retailer prices

From £836 GBP
$1,120 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: £836 GBP at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.31ct lab-grown marquise diamond

This 1.31ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG758519401 or 758519401. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758519401
Dimensions11.12 × 5.62 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.12 mm5.62 mm1.31 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG758519401
Side View
Table 58.0%Crown 37.6°Girdle: MED-STKPavilion 40.1°CuletDepth 64.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: £836 GBP|Low: £535 GBP|High: £836 GBP|Avg: £700 GBP|+7.7%
Brilliant Earth
Retailer 2
Retailer 3
January 15, 2026
Retailer 2£575 GBP
Retailer 3£583 GBP
Brilliant Earth£836 GBP

7 data points across 3 retailers

1 retailer

B
Brilliant Earth
17202343Y · Nov 2
£836 GBP
$1,120 USD
View

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B
1.31ct Marquise
£836 GBP