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Cushion|Lab Grown|IGI

1.40ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG618498655

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG618498655

Diamond specifications and retailer prices

From £283 GBP
As of November 4, 2026
Save £1,344 GBP (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,627 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG618498655 or 618498655. Listed at 11 retailers as of November 4, 2026, with prices from £283 to £1,627, a £1,344 spread on the same certified stone. Do Amore Diamonds lists it at £1,627. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618498655
Dimensions6.55 × 6.41 × 4.22 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
6.55 mm6.41 mm1.40 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618498655
Side View
Table 61.0%Crown 38.1°Girdle: STK-THKPavilion 37.8°Culet: NoneDepth 65.8%

Caratlytics Score

How it works →
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: £1,627 GBP|Low: £283 GBP|High: £1,627 GBP|Avg: £612 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3£283 GBP
Retailer 8£358 GBP
Retailer 9£395 GBP
Retailer 5£400 GBP
Retailer 2£438 GBP
Retailer 7£554 GBP
Retailer 4£568 GBP
Retailer 6£935 GBP
Do Amore Diamonds£1,627 GBP

45 data points across 9 retailers

11 retailers£283 GBP to £1,627 GBP

A
Cheapest Retailer
-
£283 GBP
A
Retailer 2
-
£331 GBP
View
A
Retailer 3
-
£358 GBP
View
A
Retailer 4
-
£395 GBP
View
A
Retailer 5
-
£400 GBP
View
B+
Retailer 6
-
£438 GBP
View
Retailer 7
-
£554 GBP
View
Price last confirmed 15 days ago
B+
Retailer 8
-
£568 GBP
View
B
Retailer 9
-
£873 GBP
View
Retailer 10
-
£935 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
Do Amore Diamonds
27-CBC43A004 · Nov 4
£1,627 GBP
$2,190 USD
View
10 more retailers have this diamond
Prices start from £283 GBPSave up to £1,344 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
£283 GBP