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Cushion|Lab Grown|IGI

4.00ct G VS2 Cushion Lab Grown Diamond

EX • G/VS2 • IGI LG812642661

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG812642661

Diamond specifications and retailer prices

From £363 GBP
$486 USD
As of October 29, 2026
Save £1,921 GBP (84%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,284 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4ct lab-grown cushion diamond

This 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 LG812642661 or 812642661. Listed at 4 retailers as of October 29, 2026, with prices from £363 to £2,284, a £1,921 spread on the same certified stone. Brilliant Earth lists it at £2,284. 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

4.00
Carat
G
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812642661
Dimensions10.59 × 8.32 × 5.66 mm
L/W Ratio1.27
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.59 mm8.32 mm4.00 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812642661
Side View
Table 62.0%Crown 36.9°Girdle: MED-THKPavilion 38.3°Culet: NoneDepth 68.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £2,284 GBP|Low: £363 GBP|High: £2,284 GBP|Avg: £1,166 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 3£363 GBP
Retailer 5£648 GBP
Retailer 2£689 GBP
Retailer 6£1,392 GBP
Retailer 4£1,679 GBP
Brilliant Earth£2,284 GBP

36 data points across 6 retailers

4 retailers£363 GBP to £2,284 GBP

A
Cheapest Retailer
-
£363 GBP
$486 USD
Final sale: no returns
A
Retailer 2
-
£689 GBP
View
Retailer 3
-
£1,679 GBP
$2,250 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21262993A · Oct 29
£2,284 GBP
$3,060 USD
View
3 more retailers have this diamond
Prices start from £363 GBPSave up to £1,921 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
4.00ct Cushion
£363 GBP