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Cushion|Lab Grown|IGI

4.02ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1 • IGI LG634402630

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG634402630

Diamond specifications and retailer prices

From £673 GBP
$902 USD
As of November 1, 2026
Save £1,983 GBP (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,656 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 4.02ct lab-grown cushion diamond

This 4.02ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG634402630 or 634402630. Listed at 11 retailers as of October 29, 2026, with prices from £673 to £2,656, a £1,983 spread on the same certified stone. MOH London lists it at £2,656. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.02
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634402630
Dimensions9.26 × 9.16 × 6.04 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.26 mm9.16 mm4.02 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634402630
Side View
Table 63.0%Crown 36.5°Girdle: STK-THKPavilion 38.5°Culet: NoneDepth 65.9%

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: Nov 1
Current: £2,656 GBP|Low: £673 GBP|High: £2,845 GBP|Avg: £1,466 GBP|-5.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 8£673 GBP
Retailer 3£744 GBP
Retailer 4£828 GBP
Retailer 6£947 GBP
Retailer 5£993 GBP
Retailer 7£1,125 GBP
Retailer 2£1,495 GBP
Retailer 11£1,500 GBP
Retailer 10£2,172 GBP
Retailer 9£2,414 GBP
MOH London£2,656 GBP

31 data points across 11 retailers

11 retailers£673 GBP to £2,656 GBP

A
Cheapest Retailer
-
£673 GBP
$902 USD
Final sale: no returns
Retailer 2
-
£744 GBP
$997 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
£828 GBP
$1,110 USD
View
A
Retailer 4
-
£947 GBP
$1,269 USD
View
A
Retailer 5
-
£993 GBP
$1,331 USD
View
A
Retailer 6
-
£1,125 GBP
$1,508 USD
View
B+
Retailer 7
-
£1,495 GBP
A$3,081 AUD
View
A
Retailer 8
-
£1,500 GBP
ZAR 32,469 ZAR
View
B+
Retailer 9
-
£2,172 GBP
View
B+
Retailer 10
-
£2,414 GBP
$3,234 USD
View
Most Expensive
B
MOH London
LG634402630 · Oct 29
£2,656 GBP
View
10 more retailers have this diamond
Prices start from £673 GBPSave up to £1,983 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
4.02ct Cushion
£673 GBP