Marquise|Lab Grown|IGI

1.01ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG733547041

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG733547041

Diamond specifications and retailer prices

From £216 GBP
As of November 5, 2026
Save £422 GBP (66%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £638 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.01ct lab-grown marquise diamond

This 1.01ct 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 LG733547041 or 733547041. Listed at 8 retailers as of November 4, 2026, with prices from £216 to £638, a £422 spread on the same certified stone. MOH London lists it at £638. 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

1.01
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733547041
Dimensions10.26 × 5.15 × 3.33 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.26 mm5.15 mm1.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733547041
Side View
Table 62.0%Crown 36.7°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 64.7%

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 5
Current: £638 GBP|Low: £210 GBP|High: £646 GBP|Avg: £322 GBP|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6£216 GBP
Retailer 2£235 GBP
Retailer 4£248 GBP
Retailer 7£252 GBP
Retailer 3£259 GBP
Retailer 5£374 GBP
Retailer 8£375 GBP
MOH London£638 GBP

39 data points across 8 retailers

8 retailers£216 GBP to £638 GBP

A
Cheapest Retailer
-
£216 GBP
A
Retailer 2
-
£235 GBP
View
Retailer 3
-
£248 GBP
View
Price last confirmed 10 days ago
A
Retailer 4
-
£252 GBP
View
A
Retailer 5
-
£259 GBP
View
B+
Retailer 6
-
£374 GBP
View
Retailer 7
-
£375 GBP
View
Price last confirmed 39 days ago
Most Expensive
B
MOH London
LG733547041 · Nov 4
£638 GBP
View
7 more retailers have this diamond
Prices start from £216 GBPSave up to £422 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
1.01ct Marquise
£216 GBP