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Cushion|Lab Grown|IGI

1.65ct D VS2 Cushion Lab Grown Diamond

ID • D/VS2 • IGI LG550256516

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG550256516

Diamond specifications and retailer prices

From $359 AUD
$252 USD
As of October 30, 2026
Save $1,705 AUD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,064 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG550256516 or 550256516. Listed at 16 retailers as of October 29, 2026, with prices from $359 to $2,064, a $1,705 spread on the same certified stone. Brilliant Earth lists it at $2,064. 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
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle31.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG550256516
Dimensions6.60 × 6.47 × 4.31 mm
L/W Ratio1.02
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
6.60 mm6.47 mm1.65 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG550256516
Side View
Table 60.5%Crown 36.6°Girdle: STK-THKPavilion 31.5°Culet: NoneDepth 66.6%

Caratlytics Score

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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 30
Current: $2,064 AUD|Low: $359 AUD|High: $2,164 AUD|Avg: $1,014 AUD|-4.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 3$359 AUD
Retailer 11$397 AUD
Retailer 5$534 AUD
Retailer 8$644 AUD
Retailer 6$742 AUD
Retailer 4$816 AUD
Retailer 12$873 AUD
Retailer 2$977 AUD
Retailer 7$1,486 AUD
Retailer 10$1,545 AUD
Retailer 9$1,596 AUD
Brilliant Earth$2,064 AUD

45 data points across 12 retailers

16 retailers$359 AUD to $2,064 AUD

A
Cheapest Retailer
-
$359 AUD
$252 USD
Final sale: no returns
A
Retailer 2
-
$397 AUD
$279 USD
View
B+
Retailer 3
-
$534 AUD
$375 USD
View
A
Retailer 4
-
$644 AUD
€431 EUR
View
A
Retailer 5
-
$742 AUD
£410 GBP
View
A
Retailer 6
-
$816 AUD
$574 USD
View
A
Retailer 7
-
$848 AUD
$596 USD
View
A
Retailer 8
-
$873 AUD
$613 USD
View
A
Retailer 9
-
$977 AUD
$686 USD
View
B+
Retailer 10
-
$1,353 AUD
$951 USD
View
B+
Retailer 11
-
$1,486 AUD
View
Retailer 12
-
$1,545 AUD
$1,085 USD
View
Price last confirmed 12 days ago
B
Retailer 13
-
$1,562 AUD
£864 GBP
View
B+
Retailer 14
-
$1,596 AUD
£883 GBP
View
B
Retailer 15
-
$1,814 AUD
$1,274 USD
View
Most Expensive
B
Brilliant Earth
10789636A · Oct 29
$2,064 AUD
$1,450 USD
View
15 more retailers have this diamond
Prices start from $359 AUDSave up to $1,705 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
$359 AUD