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Cushion|Lab Grown|IGI

4.01ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG592345134

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG592345134

Diamond specifications and retailer prices

From £592 GBP
HK$6,200 HKD
As of October 30, 2026
Save £2,132 GBP (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,724 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.01ct lab-grown cushion diamond

This 4.01ct 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 LG592345134 or 592345134. Listed at 11 retailers as of October 29, 2026, with prices from £592 to £2,724, a £2,132 spread on the same certified stone. Brilliant Earth lists it at £2,724. 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

4.01
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG592345134
Dimensions9.17 × 9.09 × 6.18 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
9.17 mm9.09 mm4.01 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG592345134
Side View
Table 65.0%Crown 32.1°Girdle: STK-THKPavilion 40.5°Culet: NoneDepth 68.0%

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: £2,724 GBP|Low: £426 GBP|High: £3,097 GBP|Avg: £1,317 GBP|-12.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 5£524 GBP
Retailer 13£592 GBP
Retailer 11£638 GBP
Retailer 2£773 GBP
Retailer 7£831 GBP
Retailer 8£845 GBP
Retailer 4£847 GBP
Retailer 9£1,020 GBP
Retailer 6£1,683 GBP
Retailer 12£1,705 GBP
Retailer 14£1,726 GBP
Retailer 10£1,750 GBP
Retailer 3£2,315 GBP
Brilliant Earth£2,724 GBP

17 data points across 14 retailers

11 retailers£592 GBP to £2,724 GBP

A
Cheapest Retailer
-
£592 GBP
HK$6,200 HKD
A
Retailer 2
-
£638 GBP
$855 USD
View
A
Retailer 3
-
£773 GBP
$1,036 USD
View
B+
Retailer 4
-
£831 GBP
$1,113 USD
View
A
Retailer 5
-
£845 GBP
View
A
Retailer 6
-
£1,020 GBP
$1,367 USD
View
B+
Retailer 7
-
£1,604 GBP
$2,149 USD
View
B+
Retailer 8
-
£1,705 GBP
SGD 3,088 SGD
View
B+
Retailer 9
-
£1,726 GBP
$2,312 USD
View
B
Retailer 10
-
£1,750 GBP
$2,344 USD
View
Most Expensive
B
Brilliant Earth
17656499A · Oct 29
£2,724 GBP
$3,650 USD
View
10 more retailers have this diamond
Prices start from £592 GBPSave up to £2,132 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
4.01ct Cushion
£592 GBP