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Marquise|Lab Grown|IGI

1.01ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG850606777

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG850606777

Diamond specifications and retailer prices

From £205 GBP
As of October 29, 2026
Save £819 GBP (80%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,024 GBP at MOH London · As of October 29, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG850606777 or 850606777. Listed at 5 retailers as of October 29, 2026, with prices from £205 to £1,024, a £819 spread on the same certified stone. MOH London lists it at £1,024. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850606777
Dimensions10.00 × 5.36 × 3.25 mm
L/W Ratio1.87
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.00 mm5.36 mm1.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850606777
Side View
Table 60.0%Crown 35.7°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 60.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £1,024 GBP|Low: £204 GBP|High: £1,024 GBP|Avg: £278 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 2£205 GBP
Retailer 4£230 GBP
Retailer 3£235 GBP
Retailer 5£237 GBP
MOH London£1,024 GBP

4 data points across 5 retailers

5 retailers£205 GBP to £1,024 GBP

A
Cheapest Retailer
-
£205 GBP
A
Retailer 2
-
£230 GBP
$308 USD
View
A
Retailer 3
-
£235 GBP
$315 USD
View
A
Retailer 4
-
£237 GBP
View
Most Expensive
B
MOH London
LG850606777 · Oct 29
£1,024 GBP
View
4 more retailers have this diamond
Prices start from £205 GBPSave up to £819 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
£205 GBP