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Cushion|Lab Grown|IGI

1.45ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG830624130

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

Certificate IGI LG830624130

Diamond specifications and retailer prices

From $1,561 NZD
As of November 4, 2026
Save $3,601 NZD (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,162 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.45ct lab-grown cushion diamond

This 1.45ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830624130 or 830624130. Listed at 14 retailers as of October 30, 2026, with prices from $1,561 to $5,162, a $3,601 spread on the same certified stone. Brilliant Earth lists it at $5,162. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830624130
Dimensions6.35 × 6.35 × 4.34 mm
L/W Ratio1.00
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
6.35 mm6.35 mm1.45 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830624130
Side View
Table 62.0%Crown 36.1°Girdle: MED-STKPavilion 39°Culet: NoneDepth 68.3%

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: $5,162 NZD|Low: $882 NZD|High: $6,351 NZD|Avg: $2,427 NZD|-14.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 3, 2026
Retailer 15$882 NZD
Retailer 13$976 NZD
Retailer 11$1,472 NZD
Retailer 4$1,533 NZD
Retailer 8$1,561 NZD
Retailer 9$1,613 NZD
Retailer 10$1,676 NZD
Retailer 14$1,999 NZD
Retailer 5$2,361 NZD
Retailer 3$2,847 NZD
Retailer 2$2,968 NZD
Retailer 6$3,248 NZD
Retailer 12$3,591 NZD
Retailer 7$3,929 NZD
Brilliant Earth$5,162 NZD

40 data points across 15 retailers

14 retailers$1,561 NZD to $5,162 NZD

Retailer 1
-
$976 NZD
Price last confirmed 11 days ago
Retailer 2
-
$1,472 NZD
View
Price last confirmed 7 days ago
Retailer 3
-
$1,533 NZD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$1,561 NZD
View
A
Retailer 5
-
$1,613 NZD
View
Retailer 6
-
$1,676 NZD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$1,999 NZD
View
B+
Retailer 8
-
$2,361 NZD
View
B+
Retailer 9
-
$2,847 NZD
View
B+
Retailer 10
-
$2,968 NZD
View
Retailer 11
-
$3,248 NZD
View
Price last confirmed 8 days ago
Retailer 12
-
$3,591 NZD
View
Price last confirmed 10 days ago
Retailer 13
-
$3,929 NZD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
21434000A · Oct 30
$5,162 NZD
$2,910 USD
View
13 more retailers have this diamond
Prices start from $1,561 NZDSave up to $3,601 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
1.45ct Cushion
$1,561 NZD