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Cushion|Lab Grown|IGI

1.37ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG591330659

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG591330659

Diamond specifications and retailer prices

From £206 GBP
As of October 27, 2026
Save £966 GBP (82%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,172 GBP at Do Amore Diamonds · As of October 27, 2026
View at Do Amore Diamonds

About this 1.37ct lab-grown cushion diamond

This 1.37ct 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 LG591330659 or 591330659. Listed at 5 retailers as of October 27, 2026, with prices from £206 to £1,172, a £966 spread on the same certified stone. Do Amore Diamonds lists it at £1,172. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.37
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591330659
Dimensions6.54 × 6.48 × 4.26 mm
L/W Ratio1.01
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
6.54 mm6.48 mm1.37 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591330659
Side View
Table 60.0%Crown 34.1°Girdle: STK-ETKPavilion 39.5°Culet: NoneDepth 65.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: £1,172 GBP|Low: £109 GBP|High: £1,284 GBP|Avg: £479 GBP|-8.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 27, 2026
Retailer 7£145 GBP
Retailer 2£206 GBP
Retailer 6£273 GBP
Retailer 8£320 GBP
Retailer 3£336 GBP
Retailer 10£401 GBP
Retailer 11£403 GBP
Retailer 4£409 GBP
Retailer 9£735 GBP
Retailer 5£788 GBP
Do Amore Diamonds£1,172 GBP

35 data points across 11 retailers

5 retailers£206 GBP to £1,172 GBP

A
Cheapest Retailer
-
£206 GBP
Retailer 2
-
£273 GBP
$366 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
£409 GBP
A$843 AUD
View
Retailer 4
-
£788 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Do Amore Diamonds
27-0D35342EC · Oct 27
£1,172 GBP
$1,570 USD
View
4 more retailers have this diamond
Prices start from £206 GBPSave up to £966 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
1.37ct Cushion
£206 GBP