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Marquise|Lab Grown|IGI

1.21ct D VVS2 Marquise Lab Grown Diamond

ID • D/VVS2 • IGI LG818655922

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818655922

Diamond specifications and retailer prices

From £256 GBP
As of November 4, 2026
Save £609 GBP (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £865 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818655922 or 818655922. Listed at 14 retailers as of November 4, 2026, with prices from £256 to £865, a £609 spread on the same certified stone. MOH London lists it at £865. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818655922
Dimensions11.68 × 5.48 × 3.37 mm
L/W Ratio2.13
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.68 mm5.48 mm1.21 ctD / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818655922
Side View
Table 57.0%Crown 32.2°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 61.5%

Caratlytics Score

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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 4
Current: £865 GBP|Low: £256 GBP|High: £1,148 GBP|Avg: £609 GBP|-13.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 9£256 GBP
Retailer 11£305 GBP
Retailer 2£382 GBP
Retailer 7£404 GBP
Retailer 4£412 GBP
Retailer 3£427 GBP
Retailer 13£473 GBP
Retailer 14£519 GBP
Retailer 6£637 GBP
Retailer 5£710 GBP
Retailer 10£733 GBP
Retailer 8£785 GBP
Retailer 12£794 GBP
MOH London£865 GBP

44 data points across 14 retailers

14 retailers£256 GBP to £865 GBP

A
Cheapest Retailer
-
£256 GBP
A
Retailer 2
-
£305 GBP
View
A
Retailer 3
-
£382 GBP
View
A
Retailer 4
-
£404 GBP
View
A
Retailer 5
-
£412 GBP
View
B+
Retailer 6
-
£427 GBP
View
B+
Retailer 7
-
£473 GBP
View
B+
Retailer 8
-
£519 GBP
View
Retailer 9
-
£637 GBP
View
Price last confirmed 8 days ago
Retailer 10
-
£710 GBP
View
Price last confirmed 7 days ago
B
Retailer 11
-
£733 GBP
View
B
Retailer 12
-
£785 GBP
View
B
Retailer 13
-
£794 GBP
View
Most Expensive
B
MOH London
LG818655922 · Nov 5
£865 GBP
View
13 more retailers have this diamond
Prices start from £256 GBPSave up to £609 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
1.21ct Marquise
£256 GBP