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Cushion|Lab Grown|IGI

1.45ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG840634486

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840634486

Diamond specifications and retailer prices

From $919 NZD
As of November 4, 2026
Save $4,093 NZD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,012 NZD at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

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 very-good cut grade and certified by IGI LG840634486 or 840634486. Listed at 16 retailers as of November 4, 2026, with prices from $919 to $5,012, a $4,093 spread on the same certified stone. Helzberg Diamonds lists it at $5,012. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.45
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634486
Dimensions8.25 × 5.55 × 3.85 mm
L/W Ratio1.49
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
8.25 mm5.55 mm1.45 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634486
Side View
Table 59.0%Crown 34.5°Girdle: STK-VTKPavilion 35.3°Culet: NoneDepth 69.4%

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: Nov 4
Current: $5,012 NZD|Low: $919 NZD|High: $6,032 NZD|Avg: $2,660 NZD
Helzberg Diamonds
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
Retailer 16
November 5, 2026
Retailer 9$919 NZD
Retailer 11$928 NZD
Retailer 12$1,414 NZD
Retailer 7$1,439 NZD
Retailer 2$1,448 NZD
Retailer 5$1,552 NZD
Retailer 4$1,705 NZD
Retailer 16$1,765 NZD
Retailer 6$2,013 NZD
Retailer 13$2,175 NZD
Retailer 15$2,938 NZD
Retailer 14$3,424 NZD
Retailer 3$3,764 NZD
Retailer 8$3,938 NZD
Retailer 10$4,967 NZD
Helzberg Diamonds$5,012 NZD

18 data points across 16 retailers

16 retailers$919 NZD to $5,012 NZD

A
Cheapest Retailer
-
$919 NZD
A
Retailer 2
-
$928 NZD
View
Final sale: no returns
A
Retailer 3
-
$1,414 NZD
View
A
Retailer 4
-
$1,439 NZD
View
A
Retailer 5
-
$1,448 NZD
View
A
Retailer 6
-
$1,552 NZD
View
A
Retailer 7
-
$1,705 NZD
View
A
Retailer 8
-
$1,765 NZD
View
B+
Retailer 9
-
$2,013 NZD
View
B+
Retailer 10
-
$2,175 NZD
View
B+
Retailer 11
-
$2,938 NZD
View
B+
Retailer 12
-
$3,424 NZD
View
B
Retailer 13
-
$3,764 NZD
View
B
Retailer 14
-
$3,938 NZD
View
B
Retailer 15
-
$4,967 NZD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJKKOM · Nov 4
$5,012 NZD
$2,825 USD
View
15 more retailers have this diamond
Prices start from $919 NZDSave up to $4,093 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
$919 NZD