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Cushion|Lab Grown|IGI

1.51ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG538289815

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG538289815

Diamond specifications and retailer prices

From £224 GBP
$300 USD
As of November 1, 2026
Save £731 GBP (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £993 GBP at MOH London · As of October 25, 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 LG538289815 or 538289815. Listed at 13 retailers as of October 31, 2026, with a 327% 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

1.51
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538289815
Dimensions7.19 × 6.98 × 4.35 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
7.19 mm6.98 mm1.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG538289815
Side View
Table 62.5%Crown 34.6°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.3%

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: £993 GBP|Low: £224 GBP|High: £1,082 GBP|Avg: £592 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 3£224 GBP
Retailer 8£248 GBP
Retailer 9£373 GBP
Retailer 11£411 GBP
Retailer 5£427 GBP
Retailer 2£475 GBP
Retailer 12£499 GBP
Retailer 7£576 GBP
Retailer 4£899 GBP
Retailer 10£953 GBP
Retailer 6£955 GBP
MOH London£993 GBP

41 data points across 12 retailers

13 retailers£224 GBP to £955 GBP

A
Cheapest Retailer
-
£224 GBP
$300 USD
Final sale: no returns
Retailer 2
-
£248 GBP
$332 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
£371 GBP
$497 USD
View
A
Retailer 4
-
£373 GBP
$500 USD
View
A
Retailer 5
-
£411 GBP
$551 USD
View
A
Retailer 6
-
£427 GBP
ZAR 9,242 ZAR
View
A
Retailer 7
-
£475 GBP
View
B+
Retailer 8
-
£499 GBP
$669 USD
View
B+
Retailer 9
-
£576 GBP
A$1,187 AUD
View
B
Retailer 10
-
£834 GBP
$1,118 USD
View
B
Retailer 11
-
£953 GBP
$1,277 USD
View
B
Retailer 12
-
£955 GBP
$1,280 USD
View
Most Expensive
MOH London
LG538289815 · Oct 25
£993 GBP
View
Price last confirmed 8 days ago
12 more retailers have this diamond
Prices start from £224 GBPSave up to £731 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
£224 GBP