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 $282 USD
£222 GBP
As of November 1, 2026
Save $846 USD (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,128 USD 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 $282 to $1,128, a $846 spread on the same certified stone. MOH London lists it at $1,128. 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
Color
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: $1,128 USD|Low: $282 USD|High: $1,350 USD|Avg: $680 USD|+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$282 USD
Retailer 13$325 USD
Retailer 7$416 USD
Retailer 9$440 USD
Retailer 2$440 USD
Retailer 3$472 USD
Retailer 10$573 USD
Retailer 5$609 USD
Retailer 4$829 USD
Retailer 12$894 USD
Retailer 6$900 USD
Retailer 11$1,110 USD
MOH London$1,128 USD

21 data points across 13 retailers

13 retailers$282 USD to $1,128 USD

A
Cheapest Retailer
-
$282 USD
£222 GBP
B+
Retailer 2
-
$325 USD
View
A
Retailer 3
-
$416 USD
ZAR 6,724 ZAR
View
A
Retailer 4
-
$440 USD
€419 EUR
View
A
Retailer 5
-
$440 USD
£346 GBP
View
A
Retailer 6
-
$472 USD
View
A
Retailer 7
-
$573 USD
View
A
Retailer 8
-
$609 USD
A$937 AUD
View
B+
Retailer 9
-
$829 USD
View
B+
Retailer 10
-
$894 USD
View
B+
Retailer 11
-
$900 USD
View
B
Retailer 12
-
$1,110 USD
View
Most Expensive
B
MOH London
LG598350180 · Nov 1
$1,128 USD
£888 GBP
View
12 more retailers have this diamond
Prices start from $282 USDSave up to $846 USD

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
$282 USD