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Marquise|Lab Grown|IGI

1.12ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG764673045

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG764673045

Diamond specifications and retailer prices

From £240 GBP
As of November 6, 2026
Save £550 GBP (70%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £790 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.12ct lab-grown marquise diamond

This 1.12ct 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 LG764673045 or 764673045. Listed at 3 retailers as of November 1, 2026, with prices from £240 to £790, a £550 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

1.12
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG764673045
Dimensions10.70 × 5.45 × 3.38 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.70 mm5.45 mm1.12 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG764673045
Side View
Table 56.0%Crown 33°Girdle: MED-STKPavilion 40°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £790 GBP|Low: £240 GBP|High: £800 GBP|Avg: £465 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3£240 GBP
Retailer 5£271 GBP
Retailer 4£333 GBP
Retailer 2£414 GBP
Retailer 6£736 GBP
MOH London£790 GBP

9 data points across 6 retailers

3 retailers£240 GBP to £790 GBP

B+
Cheapest Retailer
-
£240 GBP
B+
Retailer 2
-
£414 GBP
View
Most Expensive
B
MOH London
LG764673045 · Nov 1
£790 GBP
View
2 more retailers have this diamond
Prices start from £240 GBPSave up to £550 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.

B+
1.12ct Marquise
£240 GBP