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Cushion|Lab Grown|IGI

1.64ct D VVS2 Cushion Lab Grown Diamond

ID • D/VVS2 • IGI LG665409423

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG665409423

Diamond specifications and retailer prices

From $440 AUD
$309 USD
As of October 29, 2026
Save $3,276 AUD (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,716 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.64ct lab-grown cushion diamond

This 1.64ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG665409423 or 665409423. Listed at 18 retailers as of October 29, 2026, with prices from $440 to $3,716, a $3,276 spread on the same certified stone. Brilliant Earth lists it at $3,716. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
D
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.6°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665409423
Dimensions7.14 × 6.91 × 4.64 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.14 mm6.91 mm1.64 ctD / VVS2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG665409423
Side View
Table 63.0%Crown 38.6°Girdle: THK-VTKPavilion 41.8°Culet: NoneDepth 67.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $3,716 AUD|Low: $437 AUD|High: $3,915 AUD|Avg: $1,333 AUD|-5.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 12$440 AUD
Retailer 3$488 AUD
Retailer 8$769 AUD
Retailer 5$806 AUD
Retailer 14$840 AUD
Retailer 11$840 AUD
Retailer 2$860 AUD
Retailer 18$868 AUD
Retailer 17$962 AUD
Retailer 4$1,307 AUD
Retailer 7$1,643 AUD
Retailer 9$1,828 AUD
Retailer 15$1,909 AUD
Retailer 13$1,969 AUD
Retailer 16$2,000 AUD
Retailer 6$2,048 AUD
Retailer 10$2,091 AUD
Brilliant Earth$3,716 AUD

42 data points across 18 retailers

18 retailers$440 AUD to $3,716 AUD

A
Cheapest Retailer
-
$440 AUD
$309 USD
Final sale: no returns
A
Retailer 2
-
$488 AUD
$343 USD
View
A
Retailer 3
-
$769 AUD
$540 USD
View
A
Retailer 4
-
$806 AUD
$566 USD
View
A
Retailer 5
-
$840 AUD
ZAR 9,528 ZAR
View
A
Retailer 6
-
$840 AUD
€562 EUR
View
A
Retailer 7
-
$860 AUD
£476 GBP
View
A
Retailer 8
-
$868 AUD
$610 USD
View
A
Retailer 9
-
$962 AUD
$676 USD
View
B+
Retailer 10
-
$1,307 AUD
$918 USD
View
B+
Retailer 11
-
$1,643 AUD
$1,154 USD
View
B
Retailer 12
-
$1,828 AUD
$1,284 USD
View
B
Retailer 13
-
$1,909 AUD
£1,056 GBP
View
B
Retailer 14
-
$1,969 AUD
£1,089 GBP
View
Retailer 15
-
$2,000 AUD
$1,405 USD
View
Price last confirmed 9 days ago
B
Retailer 16
-
$2,048 AUD
$1,439 USD
View
B
Retailer 17
-
$2,134 AUD
$1,499 USD
View
Most Expensive
B
Brilliant Earth
13244189A · Oct 29
$3,716 AUD
$2,610 USD
View
17 more retailers have this diamond
Prices start from $440 AUDSave up to $3,276 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
1.64ct Cushion
$440 AUD