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Marquise|Lab Grown|IGI

1.35ct F VS1 Marquise Lab Grown Diamond

VG • F/VS1 • IGI LG851650673

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG851650673

Diamond specifications and retailer prices

From £250 GBP
As of November 2, 2026
Save £591 GBP (70%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £840 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.35ct lab-grown marquise diamond

This 1.35ct 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 very-good cut grade and certified by IGI LG851650673 or 851650673. Listed at 10 retailers as of October 29, 2026, with prices from £250 to £840, a £591 spread on the same certified stone. MOH London lists it at £840. 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

1.35
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851650673
Dimensions11.45 × 6.01 × 3.55 mm
L/W Ratio1.91
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.45 mm6.01 mm1.35 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851650673
Side View
Table 66.0%Crown 32.7°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 59.1%

Caratlytics Score

How it works →
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 2
Current: £840 GBP|Low: £250 GBP|High: £840 GBP|Avg: £526 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 2£250 GBP
Retailer 6£355 GBP
Retailer 4£389 GBP
Retailer 3£411 GBP
Retailer 5£448 GBP
Retailer 8£540 GBP
Retailer 7£563 GBP
Retailer 9£570 GBP
Retailer 10£710 GBP
MOH London£840 GBP

6 data points across 10 retailers

10 retailers£250 GBP to £840 GBP

Cheapest Retailer
-
£250 GBP
A
Retailer 2
-
£355 GBP
$477 USD
View
A
Retailer 3
-
£389 GBP
View
A
Retailer 4
-
£411 GBP
$551 USD
View
B+
Retailer 5
-
£448 GBP
$601 USD
View
B
Retailer 6
-
£540 GBP
$724 USD
View
B+
Retailer 7
-
£563 GBP
$755 USD
View
B+
Retailer 8
-
£570 GBP
A$1,177 AUD
View
B
Retailer 9
-
£710 GBP
$952 USD
View
Most Expensive
B
MOH London
LG851650673 · Oct 29
£840 GBP
View
9 more retailers have this diamond
Prices start from £250 GBPSave up to £591 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
1.35ct Marquise
£250 GBP