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Marquise|Lab Grown|IGI

1.07ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG783628988

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG783628988

Diamond specifications and retailer prices

From £192 GBP
As of November 5, 2026
Save £598 GBP (76%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £790 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.07ct lab-grown marquise diamond

This 1.07ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG783628988 or 783628988. Listed at 7 retailers as of November 2, 2026, with prices from £192 to £790, a £598 spread on the same certified stone. MOH London lists it at £790. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.07
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783628988
Dimensions11.05 × 5.44 × 3.26 mm
L/W Ratio2.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.05 mm5.44 mm1.07 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783628988
Side View
Table 57.0%Crown 34.1°Girdle: MediumPavilion 38.6°Culet: NoneDepth 59.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £790 GBP|Low: £192 GBP|High: £799 GBP|Avg: £394 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7£192 GBP
Retailer 6£240 GBP
Retailer 4£357 GBP
Retailer 2£361 GBP
Retailer 5£402 GBP
Retailer 3£414 GBP
MOH London£790 GBP

41 data points across 7 retailers

7 retailers£192 GBP to £790 GBP

A
Cheapest Retailer
-
£192 GBP
A
Retailer 2
-
£240 GBP
View
B+
Retailer 3
-
£357 GBP
View
B+
Retailer 4
-
£361 GBP
View
B+
Retailer 5
-
£402 GBP
View
B+
Retailer 6
-
£414 GBP
View
Most Expensive
B
MOH London
LG783628988 · Nov 2
£790 GBP
View
6 more retailers have this diamond
Prices start from £192 GBPSave up to £598 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
1.07ct Marquise
£192 GBP