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Marquise|Lab Grown|IGI

1.37ct F VS2 Marquise Lab Grown Diamond

EX • F/VS2 • IGI LG839693520

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839693520

Diamond specifications and retailer prices

From £233 GBP
$312 USD
As of November 1, 2026
Save £333 GBP (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £776 GBP at Brilliant Earth · As of October 1, 2026
View at Brilliant Earth

About this 1.37ct lab-grown marquise diamond

This 1.37ct 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 LG839693520 or 839693520. Listed at 6 retailers as of October 27, 2026, with a 143% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.37
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839693520
Dimensions11.39 × 5.91 × 3.63 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.39 mm5.91 mm1.37 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839693520
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.4%

Caratlytics Score

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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 1
Current: £566 GBP|Low: £233 GBP|High: £571 GBP|Avg: £328 GBP|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 4£233 GBP
Retailer 5£263 GBP
Retailer 6£331 GBP
Retailer 3£333 GBP
Retailer 2£346 GBP
Retailer 1£566 GBP

5 data points across 6 retailers

6 retailers£233 GBP to £566 GBP

A
Cheapest Retailer
-
£233 GBP
$312 USD
B+
Retailer 2
-
£263 GBP
$352 USD
View
A
Retailer 3
-
£333 GBP
$446 USD
View
A
Retailer 4
-
£346 GBP
€441 EUR
View
B+
Retailer 5
-
£566 GBP
A$1,166 AUD
View
Most Expensive
Brilliant Earth
21601347A · Oct 1
£776 GBP
$1,040 USD
View
Price last confirmed 31 days ago
5 more retailers have this diamond
Prices start from £233 GBPSave up to £333 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
1.37ct Marquise
£233 GBP