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Marquise|Lab Grown|IGI

1.51ct F VS2 Marquise Lab Grown Diamond

VG • F/VS2 • IGI LG830673485

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG830673485

Diamond specifications and retailer prices

From £256 GBP
As of November 5, 2026
Save £602 GBP (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £862 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 1.51ct lab-grown marquise diamond

This 1.51ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG830673485 or 830673485. Listed at 8 retailers as of November 5, 2026, with a 235% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
F
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830673485
Dimensions11.23 × 5.97 × 3.75 mm
L/W Ratio1.88
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.23 mm5.97 mm1.51 ctF / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830673485
Side View
Table 61.0%Crown 37.7°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £862 GBP|Low: £256 GBP|High: £888 GBP|Avg: £557 GBP|-1.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 2£256 GBP
Retailer 7£358 GBP
Retailer 5£365 GBP
Retailer 3£389 GBP
Retailer 4£680 GBP
Retailer 8£724 GBP
Retailer 6£857 GBP
MOH London£862 GBP

42 data points across 8 retailers

8 retailers£256 GBP to £857 GBP

A
Cheapest Retailer
-
£256 GBP
A
Retailer 2
-
£358 GBP
View
A
Retailer 3
-
£365 GBP
View
A
Retailer 4
-
£389 GBP
View
B+
Retailer 5
-
£680 GBP
View
B
Retailer 6
-
£724 GBP
View
B
Retailer 7
-
£857 GBP
View
Most Expensive
MOH London
LG830673485 · Oct 25
£862 GBP
View
Price last confirmed 11 days ago
7 more retailers have this diamond
Prices start from £256 GBPSave up to £602 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
1.51ct Marquise
£256 GBP