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Cushion|Lab Grown|IGI

1.50ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG825633209

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG825633209

Diamond specifications and retailer prices

From $1,629 NZD
As of November 4, 2026
Save $6,922 NZD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,551 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825633209 or 825633209. Listed at 14 retailers as of November 4, 2026, with prices from $1,629 to $8,551, a $6,922 spread on the same certified stone. Brilliant Earth lists it at $8,551. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825633209
Dimensions6.61 × 6.54 × 4.24 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.61 mm6.54 mm1.50 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825633209
Side View
Table 65.0%Crown 36.6°Girdle: STK-THKPavilion 37.9°Culet: NoneDepth 64.8%

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: Nov 4
Current: $1,904 NZD|Low: $1,629 NZD|High: $6,404 NZD|Avg: $3,846 NZD|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 4, 2026
Retailer 12$1,629 NZD
Retailer 1$1,904 NZD
Retailer 10$2,005 NZD
Retailer 4$2,084 NZD
Retailer 2$2,416 NZD
Retailer 6$2,565 NZD
Retailer 8$2,961 NZD
Retailer 7$3,101 NZD
Retailer 3$4,666 NZD
Retailer 11$5,283 NZD
Retailer 13$5,629 NZD
Retailer 5$5,844 NZD
Retailer 9$6,328 NZD

41 data points across 13 retailers

14 retailers$1,629 NZD to $8,551 NZD

A
Cheapest Retailer
-
$1,629 NZD
Final sale: no returns
A
Retailer 2
-
$1,904 NZD
View
A
Retailer 3
-
$2,005 NZD
View
A
Retailer 4
-
$2,084 NZD
View
A
Retailer 5
-
$2,416 NZD
View
A
Retailer 6
-
$2,565 NZD
View
B+
Retailer 7
-
$2,961 NZD
View
B+
Retailer 8
-
$3,101 NZD
View
B+
Retailer 9
-
$4,666 NZD
View
B
Retailer 10
-
$5,283 NZD
View
B
Retailer 11
-
$5,629 NZD
View
B
Retailer 12
-
$5,844 NZD
View
B
Retailer 13
-
$6,328 NZD
View
Most Expensive
B
Brilliant Earth
22411773A · Nov 4
$8,551 NZD
$4,820 USD
View
13 more retailers have this diamond
Prices start from $1,629 NZDSave up to $6,922 NZD

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
1.50ct Cushion
$1,629 NZD