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Cushion|Lab Grown|IGI

3.40ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG522237393

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG522237393

Diamond specifications and retailer prices

From £518 GBP
$694 USD
As of October 31, 2026
Save £3,161 GBP (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,679 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.4ct lab-grown cushion diamond

This 3.4ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG522237393 or 522237393. Listed at 13 retailers as of October 29, 2026, with prices from £518 to £3,679, a £3,161 spread on the same certified stone. Brilliant Earth lists it at £3,679. 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

3.40
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle32.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522237393
Dimensions8.62 × 8.34 × 5.27 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
8.62 mm8.34 mm3.40 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522237393
Side View
Table 64.0%Crown 34.5°Girdle: ThickPavilion 32.1°Culet: NoneDepth 63.2%

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 31
Current: £3,679 GBP|Low: £501 GBP|High: £3,791 GBP|Avg: £1,437 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 12£518 GBP
Retailer 7£575 GBP
Retailer 6£664 GBP
Retailer 11£786 GBP
Retailer 8£880 GBP
Retailer 2£900 GBP
Retailer 9£976 GBP
Retailer 10£1,672 GBP
Retailer 4£1,856 GBP
Retailer 3£1,893 GBP
Retailer 5£2,276 GBP
Brilliant Earth£3,679 GBP

41 data points across 12 retailers

13 retailers£518 GBP to £3,679 GBP

A
Cheapest Retailer
-
£518 GBP
$694 USD
Final sale: no returns
Retailer 2
-
£575 GBP
$770 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
£664 GBP
$890 USD
View
A
Retailer 4
-
£786 GBP
$1,053 USD
View
A
Retailer 5
-
£880 GBP
$1,179 USD
View
A
Retailer 6
-
£900 GBP
View
A
Retailer 7
-
£976 GBP
$1,308 USD
View
B+
Retailer 8
-
£1,672 GBP
View
B+
Retailer 9
-
£1,856 GBP
$2,487 USD
View
B+
Retailer 10
-
£1,893 GBP
$2,536 USD
View
B+
Retailer 11
-
£1,968 GBP
HK$20,600 HKD
View
B
Retailer 12
-
£2,276 GBP
View
Most Expensive
B
Brilliant Earth
17972441A · Oct 29
£3,679 GBP
$4,930 USD
View
12 more retailers have this diamond
Prices start from £518 GBPSave up to £3,161 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
3.40ct Cushion
£518 GBP