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Cushion|Lab Grown|IGI

4.01ct G VS2 Cushion Lab Grown Diamond

EX • G/VS2 • IGI LG813611515

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG813611515

Diamond specifications and retailer prices

From £354 GBP
$474 USD
As of October 29, 2026
Save £323 GBP (48%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,702 GBP at Rare Carat · As of October 14, 2026
View at Rare Carat

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 LG813611515 or 813611515. Listed at 3 retailers as of October 29, 2026, with a 91% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813611515
Dimensions11.35 × 8.17 × 5.43 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.35 mm8.17 mm4.01 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813611515
Side View
Table 63.0%Crown 34.3°Girdle: STK-THKPavilion 35°Culet: NoneDepth 66.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £1,702 GBP|Low: £354 GBP|High: £1,702 GBP|Avg: £962 GBP
Rare Carat
Retailer 2
Retailer 3
October 30, 2026
Retailer 3£354 GBP
Retailer 2£677 GBP
Rare Carat£1,702 GBP

36 data points across 3 retailers

3 retailers£354 GBP to £677 GBP

A
Cheapest Retailer
-
£354 GBP
$474 USD
Final sale: no returns
A
Retailer 2
-
£677 GBP
View
Most Expensive
Rare Carat
813611515 · Oct 14
£1,702 GBP
$2,280 USD
View
Price last confirmed 16 days ago
2 more retailers have this diamond
Prices start from £354 GBPSave up to £323 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
£354 GBP