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Cushion|Lab Grown|IGI

1.40ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1 • IGI LG650489765

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG650489765

Diamond specifications and retailer prices

From £150 GBP
As of November 4, 2026
Save £624 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £837 GBP at Reve Diamonds · As of October 11, 2026
View at Reve Diamonds

About this 1.4ct lab-grown cushion diamond

This 1.4ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG650489765 or 650489765. Listed at 12 retailers as of November 1, 2026, with a 417% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.1°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG650489765
Dimensions7.79 × 5.99 × 4.07 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.79 mm5.99 mm1.40 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG650489765
Side View
Table 64.0%Crown 29.1°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 67.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £219 GBP|Low: £144 GBP|High: £837 GBP|Avg: £458 GBP|+8.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Reve Diamonds
November 4, 2026
Retailer 3£150 GBP
Retailer 4£160 GBP
Retailer 1£219 GBP
Retailer 10£285 GBP
Retailer 12£290 GBP
Retailer 8£307 GBP
Retailer 9£403 GBP
Retailer 14£410 GBP
Retailer 2£425 GBP
Retailer 6£544 GBP
Retailer 7£603 GBP
Retailer 13£622 GBP
Retailer 11£774 GBP
Retailer 5£779 GBP
Reve Diamonds£837 GBP

29 data points across 15 retailers

12 retailers£150 GBP to £774 GBP

A
Cheapest Retailer
-
£150 GBP
Final sale: no returns
A
Retailer 2
-
£219 GBP
View
A
Retailer 3
-
£285 GBP
View
A
Retailer 4
-
£290 GBP
View
B+
Retailer 5
-
£307 GBP
View
A
Retailer 6
-
£403 GBP
View
A
Retailer 7
-
£410 GBP
View
A
Retailer 8
-
£425 GBP
View
B+
Retailer 9
-
£603 GBP
View
B+
Retailer 10
-
£622 GBP
View
B+
Retailer 11
-
£774 GBP
View
Most Expensive
Reve Diamonds
D803458DD · Oct 11
£837 GBP
$1,130 USD
View
Price last confirmed 24 days ago
11 more retailers have this diamond
Prices start from £150 GBPSave up to £624 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
1.40ct Cushion
£150 GBP