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Cushion|Lab Grown|IGI

1.65ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG811660159

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG811660159

Diamond specifications and retailer prices

From $622 AUD
€416 EUR
As of October 29, 2026
Save $904 AUD (59%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,526 AUD at With Clarity · As of October 30, 2026
View at With Clarity

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 LG811660159 or 811660159. Listed at 8 retailers as of October 29, 2026, with prices from $622 to $1,526, a $904 spread on the same certified stone. With Clarity lists it at $1,526. 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°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811660159
Dimensions8.37 × 6.03 × 4.11 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.37 mm6.03 mm1.65 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811660159
Side View
Table 63.0%Crown 36°Girdle: MED-STKPavilion 37.6°Culet: NoneDepth 68.2%

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 29
Current: $622 AUD|Low: $410 AUD|High: $1,640 AUD|Avg: $1,147 AUD|-3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
With Clarity
October 29, 2026
Retailer 4$410 AUD
Retailer 1$622 AUD
Retailer 6$844 AUD
Retailer 2$855 AUD
Retailer 5$1,368 AUD
Retailer 3$1,470 AUD
Retailer 7$1,523 AUD
With Clarity$1,526 AUD

23 data points across 8 retailers

8 retailers$622 AUD to $1,526 AUD

Retailer 1
-
$410 AUD
£227 GBP
Price last confirmed 14 days ago
A
Retailer 2
-
$622 AUD
€416 EUR
View
A
Retailer 3
-
$844 AUD
$593 USD
View
A
Retailer 4
-
$855 AUD
View
B+
Retailer 5
-
$1,368 AUD
$961 USD
View
B+
Retailer 6
-
$1,470 AUD
£813 GBP
View
Retailer 7
-
$1,523 AUD
SGD 1,446 SGD
View
Price last confirmed 18 days ago
Most Expensive
B+
With Clarity
811660159 · Oct 30
$1,526 AUD
$1,072 USD
View
7 more retailers have this diamond
Prices start from $622 AUDSave up to $904 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
$622 AUD