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Cushion|Lab Grown|IGI

4.02ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG799677930

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG799677930

Diamond specifications and retailer prices

From £359 GBP
$482 USD
As of November 1, 2026
Save £1,705 GBP (83%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,064 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.02ct lab-grown cushion diamond

This 4.02ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG799677930 or 799677930. Listed at 4 retailers as of November 1, 2026, with prices from £359 to £2,064, a £1,705 spread on the same certified stone. Brilliant Earth lists it at £2,064. 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

4.02
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799677930
Dimensions10.76 × 8.38 × 5.72 mm
L/W Ratio1.28
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.76 mm8.38 mm4.02 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799677930
Side View
Table 64.0%Crown 35°Girdle: STK-THKPavilion 37.3°Culet: NoneDepth 68.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £2,064 GBP|Low: £359 GBP|High: £2,702 GBP|Avg: £1,076 GBP|-16.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 3£359 GBP
Retailer 5£658 GBP
Retailer 7£660 GBP
Retailer 2£676 GBP
Retailer 9£708 GBP
Retailer 10£839 GBP
Retailer 6£908 GBP
Retailer 8£1,417 GBP
Retailer 4£1,621 GBP
Brilliant Earth£2,064 GBP

38 data points across 10 retailers

4 retailers£359 GBP to £2,064 GBP

A
Cheapest Retailer
-
£359 GBP
$482 USD
Final sale: no returns
A
Retailer 2
-
£676 GBP
View
Retailer 3
-
£1,621 GBP
$2,175 USD
View
Price last confirmed 18 days ago
Most Expensive
B
Brilliant Earth
19722763A · Nov 2
£2,064 GBP
$2,770 USD
View
3 more retailers have this diamond
Prices start from £359 GBPSave up to £1,705 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
4.02ct Cushion
£359 GBP