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Cushion|Lab Grown|IGI

1.31ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG595360309

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG595360309

Diamond specifications and retailer prices

From $398 AUD
As of November 4, 2026
Save $1,297 AUD (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,695 AUD at Flawless Fine Jewelry · As of November 4, 2026
View at Flawless Fine Jewelry

About this 1.31ct lab-grown cushion diamond

This 1.31ct 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 LG595360309 or 595360309. Listed at 12 retailers as of November 4, 2026, with prices from $398 to $1,695, a $1,297 spread on the same certified stone. Flawless Fine Jewelry lists it at $1,695. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG595360309
Dimensions6.41 × 6.32 × 4.19 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
6.41 mm6.32 mm1.31 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG595360309
Side View
Table 62.0%Crown 36.5°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 66.3%

Caratlytics Score

How it works →
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 4
Current: $1,695 AUD|Low: $325 AUD|High: $1,695 AUD|Avg: $829 AUD
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 7$325 AUD
Retailer 4$398 AUD
Retailer 6$562 AUD
Retailer 8$573 AUD
Retailer 2$583 AUD
Retailer 9$584 AUD
Retailer 10$683 AUD
Retailer 5$794 AUD
Retailer 3$1,518 AUD
Flawless Fine Jewelry$1,695 AUD

44 data points across 10 retailers

12 retailers$398 AUD to $1,695 AUD

Retailer 1
-
$325 AUD
Price last confirmed 11 days ago
A
Retailer 2
-
$398 AUD
View
A
Retailer 3
-
$562 AUD
View
A
Retailer 4
-
$573 AUD
View
A
Retailer 5
-
$583 AUD
View
Retailer 6
-
$584 AUD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$683 AUD
View
A
Retailer 8
-
$710 AUD
View
A
Retailer 9
-
$794 AUD
View
B+
Retailer 10
-
$1,123 AUD
View
B
Retailer 11
-
$1,518 AUD
View
Most Expensive
B
Flawless Fine Jewelry
AC526EA9B · Nov 4
$1,695 AUD
£936 GBP
View
11 more retailers have this diamond
Prices start from $398 AUDSave up to $1,297 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
1.31ct Cushion
$398 AUD