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 $253 USD
As of October 28, 2026
Save $888 USD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,141 USD at Brilliance · As of October 28, 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 $253 to $1,141, a $888 spread on the same certified stone. Brilliance lists it at $1,141. 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
Color
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: $1,141 USD|Low: $253 USD|High: $1,180 USD|Avg: $684 USD|-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$253 USD
Retailer 9$281 USD
Retailer 3$477 USD
Retailer 7$482 USD
Retailer 2$524 USD
Retailer 11$603 USD
Retailer 10$614 USD
Retailer 8$655 USD
Retailer 4$913 USD
Retailer 13$955 USD
Retailer 5$1,108 USD
Retailer 6$1,130 USD
Brilliance$1,141 USD

42 data points across 13 retailers

14 retailers$253 USD to $1,141 USD

A
Cheapest Retailer
-
$253 USD
Final sale: no returns
A
Retailer 2
-
$281 USD
View
B+
Retailer 3
-
$477 USD
View
A
Retailer 4
-
$482 USD
ZAR 7,788 ZAR
View
A
Retailer 5
-
$524 USD
£412 GBP
View
A
Retailer 6
-
$603 USD
View
A
Retailer 7
-
$614 USD
View
A
Retailer 8
-
$655 USD
A$1,008 AUD
View
B+
Retailer 9
-
$913 USD
SGD 1,234 SGD
View
B+
Retailer 10
-
$955 USD
View
B
Retailer 11
-
$1,100 USD
View
Retailer 12
-
$1,108 USD
A$1,705 AUD
View
Price last confirmed 25 days ago
B+
Retailer 13
-
$1,130 USD
£890 GBP
View
Most Expensive
B
Brilliance
D42940830 · Oct 28
$1,141 USD
View
13 more retailers have this diamond
Prices start from $253 USDSave up to $888 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
1.65ct Cushion
$253 USD