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Cushion|Lab Grown|IGI

3.38ct H SI2 Cushion Lab Grown Diamond

ID • H/SI2 • IGI LG522237402

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG522237402

Diamond specifications and retailer prices

From £602 GBP
As of November 6, 2026
Save £1,024 GBP (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,457 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 3.38ct lab-grown cushion diamond

This 3.38ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522237402 or 522237402. Listed at 7 retailers as of November 6, 2026, with a 170% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.38
Carat
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522237402
Dimensions8.39 × 8.61 × 5.36 mm
L/W Ratio1.03
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
8.39 mm8.61 mm3.38 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522237402
Side View
Table 64.5%Crown 35.2°Girdle: STK-VTKPavilion 36.1°Culet: NoneDepth 63.9%

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 6
Current: £2,457 GBP|Low: £591 GBP|High: £2,645 GBP|Avg: £1,416 GBP|+2.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 6£602 GBP
Retailer 4£625 GBP
Retailer 5£859 GBP
Retailer 3£1,014 GBP
Retailer 2£1,360 GBP
Retailer 7£1,626 GBP
MOH London£2,457 GBP

8 data points across 7 retailers

7 retailers£602 GBP to £1,626 GBP

A
Cheapest Retailer
-
£602 GBP
Final sale: no returns
Retailer 2
-
£625 GBP
View
Price last confirmed 25 days ago
A
Retailer 3
-
£859 GBP
View
B+
Retailer 4
-
£1,014 GBP
View
B+
Retailer 5
-
£1,360 GBP
View
B
Retailer 6
-
£1,626 GBP
View
Most Expensive
MOH London
LG522237402 · Oct 26
£2,457 GBP
View
Price last confirmed 10 days ago
6 more retailers have this diamond
Prices start from £602 GBPSave up to £1,024 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
3.38ct Cushion
£602 GBP