CaratHunter
Plans
Cushion|Lab Grown|IGI

4.26ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG500149714

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG500149714

Diamond specifications and retailer prices

From £2,485 GBP
$3,330 USD
As of October 31, 2026
10 retailers carry this diamond
Most expensive: £28,774 GBP at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

About this 4.26ct lab-grown cushion diamond

This 4.26ct 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 LG500149714 or 500149714. 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

4.26
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500149714
Dimensions9.12 × 8.84 × 5.93 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
9.12 mm8.84 mm4.26 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500149714
Side View
Table 63.5%Crown 34.6°Girdle: STK-VTKPavilion 34.3°Culet: NoneDepth 67.1%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: £28,774 GBP|Low: £2,485 GBP|High: £33,699 GBP|Avg: £17,172 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£2,485 GBP
Retailer 5£9,360 GBP
Retailer 13£12,364 GBP
Retailer 10£13,051 GBP
Retailer 3£13,065 GBP
Retailer 9£13,373 GBP
Retailer 8£13,518 GBP
Retailer 4£14,512 GBP
Retailer 11£19,370 GBP
Retailer 6£21,346 GBP
Cape Diamonds£28,774 GBP
Retailer 7£29,397 GBP
Retailer 12£33,699 GBP

20 data points across 13 retailers

10 retailers

B+
Cheapest Retailer
-
£2,485 GBP
$3,330 USD
Retailer 2
-
£12,364 GBP
$16,566 USD
View
Price under review
Retailer 3
-
£13,051 GBP
$17,487 USD
View
Price under review
Final sale: no returns
Retailer 4
-
£13,373 GBP
$17,919 USD
View
Price under review
Retailer 5
-
£21,346 GBP
View
Price under review
Most Expensive
Cape Diamonds
cert_500149714 · Oct 29
£28,774 GBP
ZAR 622,836 ZAR
View
Price under review
5 more retailers have this diamond
Prices start from £2,485 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+
4.26ct Cushion
£2,485 GBP