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Marquise|Lab Grown|IGI

1.20ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG766696494

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG766696494

Diamond specifications and retailer prices

From £240 GBP
$322 USD
As of November 1, 2026
Save £599 GBP (71%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £839 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG766696494 or 766696494. Listed at 12 retailers as of October 29, 2026, with prices from £240 to £839, a £599 spread on the same certified stone. MOH London lists it at £839. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766696494
Dimensions11.23 × 5.38 × 3.30 mm
L/W Ratio2.09
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.23 mm5.38 mm1.20 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766696494
Side View
Table 65.0%Crown 32.2°Girdle: THK-VTKPavilion 39.1°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £839 GBP|Low: £239 GBP|High: £852 GBP|Avg: £475 GBP|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9£240 GBP
Retailer 3£248 GBP
Retailer 10£321 GBP
Retailer 2£325 GBP
Retailer 8£330 GBP
Retailer 4£359 GBP
Retailer 5£429 GBP
Retailer 7£539 GBP
Retailer 12£602 GBP
Retailer 11£614 GBP
Retailer 6£627 GBP
MOH London£839 GBP

43 data points across 12 retailers

12 retailers£240 GBP to £839 GBP

B+
Cheapest Retailer
-
£240 GBP
$322 USD
A
Retailer 2
-
£248 GBP
HK$2,600 HKD
View
A
Retailer 3
-
£321 GBP
$430 USD
View
A
Retailer 4
-
£325 GBP
View
A
Retailer 5
-
£330 GBP
€421 EUR
View
B+
Retailer 6
-
£429 GBP
$575 USD
View
B+
Retailer 7
-
£539 GBP
A$1,111 AUD
View
B
Retailer 8
-
£602 GBP
$806 USD
View
B
Retailer 9
-
£614 GBP
$823 USD
View
B
Retailer 10
-
£627 GBP
$840 USD
View
B
Retailer 11
-
£672 GBP
CA$1,250 CAD
View
Most Expensive
B
MOH London
LG766696494 · Oct 29
£839 GBP
View
11 more retailers have this diamond
Prices start from £240 GBPSave up to £599 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
1.20ct Marquise
£240 GBP