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Cushion|Lab Grown|IGI

1.43ct G VVS1 Cushion Lab Grown Diamond

ID • G/VVS1 • IGI LG553246420

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG553246420

Diamond specifications and retailer prices

From £152 GBP
$203 USD
As of October 30, 2026
Save £647 GBP (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £873 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 1.43ct lab-grown cushion diamond

This 1.43ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG553246420 or 553246420. Listed at 10 retailers as of October 29, 2026, with a 427% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.43
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG553246420
Dimensions6.62 × 6.60 × 4.28 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) process.
Top View
6.62 mm6.60 mm1.43 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG553246420
Side View
Table 58.0%Crown 33.5°Girdle: THN-MEDPavilion 37.5°Culet: NoneDepth 64.8%

Caratlytics Score

How it works →
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 30
Current: £873 GBP|Low: £107 GBP|High: £879 GBP|Avg: £477 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 9£152 GBP
Retailer 7£296 GBP
Retailer 4£319 GBP
Retailer 2£341 GBP
Retailer 8£359 GBP
Retailer 5£454 GBP
Retailer 10£726 GBP
Retailer 3£728 GBP
Retailer 6£799 GBP
MOH London£873 GBP

41 data points across 10 retailers

10 retailers£152 GBP to £799 GBP

A
Cheapest Retailer
-
£152 GBP
$203 USD
Final sale: no returns
B+
Retailer 2
-
£296 GBP
$397 USD
View
A
Retailer 3
-
£319 GBP
ZAR 6,903 ZAR
View
A
Retailer 4
-
£341 GBP
View
A
Retailer 5
-
£359 GBP
$481 USD
View
A
Retailer 6
-
£454 GBP
A$936 AUD
View
B
Retailer 7
-
£726 GBP
$973 USD
View
B
Retailer 8
-
£728 GBP
View
B
Retailer 9
-
£799 GBP
$1,070 USD
View
Most Expensive
MOH London
LG553246420 · Oct 21
£873 GBP
View
Price last confirmed 10 days ago
9 more retailers have this diamond
Prices start from £152 GBPSave up to £647 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
1.43ct Cushion
£152 GBP