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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 $280 USD
£220 GBP
As of November 2, 2026
Save $909 USD (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,189 USD at Flawless Fine Jewelry · As of November 2, 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 2, 2026, with prices from $280 to $1,189, a $909 spread on the same certified stone. Flawless Fine Jewelry lists it at $1,189. 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
Color
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 2
Current: $1,189 USD|Low: $228 USD|High: $1,189 USD|Avg: $584 USD
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 7$228 USD
Retailer 3$280 USD
Retailer 5$394 USD
Retailer 8$402 USD
Retailer 9$410 USD
Retailer 2$413 USD
Retailer 10$479 USD
Retailer 4$557 USD
Retailer 6$1,068 USD
Flawless Fine Jewelry$1,189 USD

43 data points across 10 retailers

12 retailers$280 USD to $1,189 USD

Retailer 1
-
$228 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$280 USD
£220 GBP
View
A
Retailer 3
-
$394 USD
ZAR 6,372 ZAR
View
A
Retailer 4
-
$402 USD
View
Retailer 5
-
$410 USD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$413 USD
£325 GBP
View
A
Retailer 7
-
$479 USD
View
A
Retailer 8
-
$498 USD
View
A
Retailer 9
-
$557 USD
A$857 AUD
View
B+
Retailer 10
-
$789 USD
View
B
Retailer 11
-
$1,068 USD
£841 GBP
View
Most Expensive
B
Flawless Fine Jewelry
AC526EA9B · Nov 2
$1,189 USD
£936 GBP
View
11 more retailers have this diamond
Prices start from $280 USDSave up to $909 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
1.31ct Cushion
$280 USD