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Cushion|Lab Grown|IGI

1.65ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG809691799

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG809691799

Diamond specifications and retailer prices

From $360 AUD
$253 USD
As of October 28, 2026
Save $1,264 AUD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,624 AUD at Brilliance · As of October 30, 2026
View at Brilliance

About this 1.65ct lab-grown cushion diamond

This 1.65ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG809691799 or 809691799. Listed at 14 retailers as of October 28, 2026, with prices from $360 to $1,624, a $1,264 spread on the same certified stone. Brilliance lists it at $1,624. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.65
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809691799
Dimensions8.38 × 6.07 × 4.06 mm
L/W Ratio1.38
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.38 mm6.07 mm1.65 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809691799
Side View
Table 60.0%Crown 36.1°Girdle: THK-VTKPavilion 38.5°Culet: NoneDepth 66.9%

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: Oct 28
Current: $1,624 AUD|Low: $360 AUD|High: $1,680 AUD|Avg: $974 AUD|-3.3%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 12$360 AUD
Retailer 9$400 AUD
Retailer 3$679 AUD
Retailer 7$686 AUD
Retailer 2$746 AUD
Retailer 11$858 AUD
Retailer 10$874 AUD
Retailer 8$933 AUD
Retailer 4$1,300 AUD
Retailer 13$1,359 AUD
Retailer 5$1,578 AUD
Retailer 6$1,609 AUD
Brilliance$1,624 AUD

42 data points across 13 retailers

14 retailers$360 AUD to $1,624 AUD

A
Cheapest Retailer
-
$360 AUD
$253 USD
Final sale: no returns
A
Retailer 2
-
$400 AUD
$281 USD
View
B+
Retailer 3
-
$679 AUD
$477 USD
View
A
Retailer 4
-
$686 AUD
ZAR 7,788 ZAR
View
A
Retailer 5
-
$746 AUD
£412 GBP
View
A
Retailer 6
-
$858 AUD
$603 USD
View
A
Retailer 7
-
$874 AUD
$614 USD
View
A
Retailer 8
-
$933 AUD
View
B+
Retailer 9
-
$1,300 AUD
SGD 1,234 SGD
View
B+
Retailer 10
-
$1,359 AUD
$955 USD
View
B
Retailer 11
-
$1,566 AUD
$1,100 USD
View
Retailer 12
-
$1,578 AUD
View
Price last confirmed 26 days ago
B+
Retailer 13
-
$1,609 AUD
£890 GBP
View
Most Expensive
B
Brilliance
D42940830 · Oct 30
$1,624 AUD
$1,141 USD
View
13 more retailers have this diamond
Prices start from $360 AUDSave up to $1,264 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
1.65ct Cushion
$360 AUD