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Marquise|Lab Grown|IGI

1.28ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG839664801

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839664801

Diamond specifications and retailer prices

From £159 GBP
As of November 4, 2026
Save £634 GBP (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £793 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.28ct lab-grown marquise diamond

This 1.28ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839664801 or 839664801. Listed at 11 retailers as of November 2, 2026, with prices from £159 to £793, a £634 spread on the same certified stone. MOH London lists it at £793. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839664801
Dimensions10.92 × 5.82 × 3.56 mm
L/W Ratio1.88
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
10.92 mm5.82 mm1.28 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839664801
Side View
Table 58.0%Crown 33.8°Girdle: MED-STKPavilion 40.6°CuletDepth 61.2%

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: £793 GBP|Low: £156 GBP|High: £889 GBP|Avg: £473 GBP|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 4, 2026
Retailer 7£159 GBP
Retailer 11£185 GBP
Retailer 2£264 GBP
Retailer 10£339 GBP
Retailer 8£368 GBP
Retailer 5£484 GBP
Retailer 6£539 GBP
Retailer 3£563 GBP
Retailer 9£636 GBP
Retailer 4£637 GBP
MOH London£793 GBP

39 data points across 11 retailers

11 retailers£159 GBP to £793 GBP

A
Cheapest Retailer
-
£159 GBP
A
Retailer 2
-
£185 GBP
View
A
Retailer 3
-
£264 GBP
View
A
Retailer 4
-
£339 GBP
View
Retailer 5
-
£368 GBP
View
Price last confirmed 10 days ago
B+
Retailer 6
-
£484 GBP
View
B+
Retailer 7
-
£539 GBP
View
Retailer 8
-
£563 GBP
View
Price last confirmed 7 days ago
B
Retailer 9
-
£636 GBP
View
B
Retailer 10
-
£637 GBP
View
Most Expensive
B
MOH London
LG839664801 · Nov 2
£793 GBP
View
10 more retailers have this diamond
Prices start from £159 GBPSave up to £634 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
1.28ct Marquise
£159 GBP