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Cushion|Lab Grown|IGI

4.24ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG500144722

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG500144722

Diamond specifications and retailer prices

From £2,478 GBP
$3,320 USD
As of October 31, 2026
10 retailers carry this diamond
Most expensive: £28,640 GBP at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

About this 4.24ct lab-grown cushion diamond

This 4.24ct 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 LG500144722 or 500144722. Listed at 10 retailers as of October 31, 2026. 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

4.24
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500144722
Dimensions9.18 × 8.87 × 5.75 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
9.18 mm8.87 mm4.24 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500144722
Side View
Table 64.5%Crown 35.6°Girdle: MED-VTKPavilion 33.3°Culet: NoneDepth 64.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £28,640 GBP|Low: £2,478 GBP|High: £33,543 GBP|Avg: £17,095 GBP|-10.8%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 2£2,478 GBP
Retailer 5£9,328 GBP
Retailer 13£12,305 GBP
Retailer 10£12,991 GBP
Retailer 3£13,006 GBP
Retailer 9£13,312 GBP
Retailer 8£13,455 GBP
Retailer 4£14,445 GBP
Retailer 11£19,279 GBP
Retailer 6£21,248 GBP
Cape Diamonds£28,640 GBP
Retailer 7£29,263 GBP
Retailer 12£33,543 GBP

20 data points across 13 retailers

10 retailers

B+
Cheapest Retailer
-
£2,478 GBP
$3,320 USD
Retailer 2
-
£12,305 GBP
$16,488 USD
View
Price under review
Retailer 3
-
£12,991 GBP
$17,406 USD
View
Price under review
Final sale: no returns
Retailer 4
-
£21,248 GBP
View
Price under review
Most Expensive
Cape Diamonds
cert_500144722 · Oct 29
£28,640 GBP
ZAR 619,951 ZAR
View
Price under review
4 more retailers have this diamond
Prices start from £2,478 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.

B+
4.24ct Cushion
£2,478 GBP