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Cushion|Lab Grown|IGI

1.28ct D VS2 Cushion Lab Grown Diamond

EX • D/VS2 • IGI LG647402944

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG647402944

Diamond specifications and retailer prices

From £308 GBP
€393 EUR
As of October 31, 2026
Save £488 GBP (61%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £796 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG647402944 or 647402944. Listed at 11 retailers as of October 31, 2026, with prices from £308 to £796, a £488 spread on the same certified stone. MOH London lists it at £796. 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
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG647402944
Dimensions6.42 × 6.26 × 4.12 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.42 mm6.26 mm1.28 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG647402944
Side View
Table 62.0%Crown 36.5°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 65.8%

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: Oct 31
Current: £796 GBP|Low: £199 GBP|High: £832 GBP|Avg: £484 GBP|-3.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 9£199 GBP
Retailer 8£239 GBP
Retailer 5£308 GBP
Retailer 12£341 GBP
Retailer 2£368 GBP
Retailer 11£374 GBP
Retailer 10£437 GBP
Retailer 7£504 GBP
Retailer 4£637 GBP
Retailer 3£678 GBP
Retailer 6£694 GBP
MOH London£796 GBP

39 data points across 12 retailers

11 retailers£308 GBP to £796 GBP

Retailer 1
-
£199 GBP
$266 USD
Price last confirmed 20 days ago
Retailer 2
-
£239 GBP
View
Price last confirmed 15 days ago
A
Retailer 3
-
£308 GBP
€393 EUR
View
A
Retailer 4
-
£341 GBP
$457 USD
View
A
Retailer 5
-
£368 GBP
View
A
Retailer 6
-
£374 GBP
$501 USD
View
B+
Retailer 7
-
£437 GBP
$586 USD
View
B+
Retailer 8
-
£504 GBP
$675 USD
View
Retailer 9
-
£678 GBP
$909 USD
View
Price last confirmed 14 days ago
B
Retailer 10
-
£694 GBP
$930 USD
View
Most Expensive
B
MOH London
LG647402944 · Nov 1
£796 GBP
View
10 more retailers have this diamond
Prices start from £308 GBPSave up to £488 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 Cushion
£308 GBP