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Cushion|Lab Grown|IGI

1.51ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG598350180

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG598350180

Diamond specifications and retailer prices

From £210 GBP
As of November 1, 2026
Save £631 GBP (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £842 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG598350180 or 598350180. Listed at 13 retailers as of November 1, 2026, with prices from £210 to £842, a £631 spread on the same certified stone. MOH London lists it at £842. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598350180
Dimensions7.03 × 6.63 × 4.20 mm
L/W Ratio1.06
Girdle conditionFaceted
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
7.03 mm6.63 mm1.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598350180
Side View
Table 62.0%Crown 33.4°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 63.3%

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 1
Current: £842 GBP|Low: £210 GBP|High: £1,008 GBP|Avg: £508 GBP|+6.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 8£210 GBP
Retailer 13£243 GBP
Retailer 7£311 GBP
Retailer 9£328 GBP
Retailer 2£328 GBP
Retailer 3£352 GBP
Retailer 10£428 GBP
Retailer 5£455 GBP
Retailer 4£619 GBP
Retailer 12£667 GBP
Retailer 6£672 GBP
Retailer 11£828 GBP
MOH London£842 GBP

21 data points across 13 retailers

13 retailers£210 GBP to £842 GBP

A
Cheapest Retailer
-
£210 GBP
B+
Retailer 2
-
£243 GBP
$325 USD
View
A
Retailer 3
-
£311 GBP
ZAR 6,724 ZAR
View
A
Retailer 4
-
£328 GBP
€419 EUR
View
A
Retailer 5
-
£328 GBP
View
A
Retailer 6
-
£352 GBP
$472 USD
View
A
Retailer 7
-
£428 GBP
$573 USD
View
A
Retailer 8
-
£455 GBP
A$937 AUD
View
B+
Retailer 9
-
£619 GBP
$829 USD
View
B+
Retailer 10
-
£667 GBP
$894 USD
View
B+
Retailer 11
-
£672 GBP
$900 USD
View
B
Retailer 12
-
£828 GBP
$1,110 USD
View
Most Expensive
B
MOH London
LG598350180 · Nov 1
£842 GBP
View
12 more retailers have this diamond
Prices start from £210 GBPSave up to £631 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
1.51ct Cushion
£210 GBP