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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 $401 AUD
£222 GBP
As of November 1, 2026
Save $1,204 AUD (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,605 AUD 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 $401 to $1,605, a $1,204 spread on the same certified stone. MOH London lists it at $1,605. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,605 AUD|Low: $401 AUD|High: $1,922 AUD|Avg: $970 AUD|+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 9$401 AUD
Retailer 3$463 AUD
Retailer 8$593 AUD
Retailer 10$626 AUD
Retailer 6$626 AUD
Retailer 4$672 AUD
Retailer 2$799 AUD
Retailer 11$816 AUD
Retailer 5$1,180 AUD
Retailer 13$1,273 AUD
Retailer 7$1,281 AUD
Retailer 12$1,580 AUD
MOH London$1,605 AUD

21 data points across 13 retailers

13 retailers$401 AUD to $1,605 AUD

A
Cheapest Retailer
-
$401 AUD
£222 GBP
B+
Retailer 2
-
$463 AUD
$325 USD
View
A
Retailer 3
-
$593 AUD
ZAR 6,724 ZAR
View
A
Retailer 4
-
$626 AUD
€419 EUR
View
A
Retailer 5
-
$626 AUD
£346 GBP
View
A
Retailer 6
-
$672 AUD
$472 USD
View
A
Retailer 7
-
$799 AUD
View
A
Retailer 8
-
$816 AUD
$573 USD
View
B+
Retailer 9
-
$1,180 AUD
$829 USD
View
B+
Retailer 10
-
$1,273 AUD
$894 USD
View
B+
Retailer 11
-
$1,281 AUD
$900 USD
View
B
Retailer 12
-
$1,580 AUD
$1,110 USD
View
Most Expensive
B
MOH London
LG598350180 · Nov 1
$1,605 AUD
£888 GBP
View
12 more retailers have this diamond
Prices start from $401 AUDSave up to $1,204 AUD

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
$401 AUD