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Cushion|Lab Grown|IGI

1.28ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG843635817

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG843635817

Diamond specifications and retailer prices

From £161 GBP
As of November 4, 2026
Save £852 GBP (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,012 GBP at Michael Trio · As of November 4, 2026
View at Michael Trio

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG843635817 or 843635817. Listed at 14 retailers as of November 4, 2026, with prices from £161 to £1,012, a £852 spread on the same certified stone. Michael Trio lists it at £1,012. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843635817
Dimensions7.67 × 5.48 × 3.73 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.67 mm5.48 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843635817
Side View
Table 62.0%Crown 39°Girdle: MED-STKPavilion 33.8°Culet: NoneDepth 68.1%

Caratlytics Score

How it works →
A+
Exceptional
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: £1,012 GBP|Low: £161 GBP|High: £1,046 GBP|Avg: £468 GBP|-3.2%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 4, 2026
Retailer 10£161 GBP
Retailer 2£203 GBP
Retailer 6£241 GBP
Retailer 8£292 GBP
Retailer 13£309 GBP
Retailer 7£322 GBP
Retailer 4£419 GBP
Retailer 12£437 GBP
Retailer 5£471 GBP
Retailer 9£601 GBP
Retailer 11£613 GBP
Retailer 3£838 GBP
Michael Trio£1,012 GBP

15 data points across 13 retailers

14 retailers£161 GBP to £1,012 GBP

A+
Cheapest Retailer
-
£161 GBP
Final sale: no returns
A
Retailer 2
-
£203 GBP
View
B+
Retailer 3
-
£241 GBP
View
A
Retailer 4
-
£292 GBP
View
A
Retailer 5
-
£309 GBP
View
A
Retailer 6
-
£322 GBP
View
A
Retailer 7
-
£419 GBP
View
A
Retailer 8
-
£437 GBP
View
A
Retailer 9
-
£471 GBP
View
B+
Retailer 10
-
£601 GBP
View
B+
Retailer 11
-
£613 GBP
View
Retailer 12
-
£759 GBP
View
Price last confirmed 8 days ago
B
Retailer 13
-
£838 GBP
View
Most Expensive
B
Michael Trio
1277406412 · Nov 4
£1,012 GBP
SGD 1,847 SGD
View
13 more retailers have this diamond
Prices start from £161 GBPSave up to £852 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
£161 GBP