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Cushion|Lab Grown|IGI

1.45ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG799648306

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

Certificate IGI LG799648306

Diamond specifications and retailer prices

From $1,073 NZD
As of November 5, 2026
Save $3,699 NZD (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,772 NZD at Brilliant Earth · As of November 4, 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 LG799648306 or 799648306. Listed at 7 retailers as of November 4, 2026, with prices from $1,073 to $4,772, a $3,699 spread on the same certified stone. Brilliant Earth lists it at $4,772. 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 angle35.4°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799648306
Dimensions6.46 × 6.37 × 4.17 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
6.46 mm6.37 mm1.45 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799648306
Side View
Table 65.0%Crown 35.4°Girdle: STK-THKPavilion 36.1°Culet: NoneDepth 65.5%

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 5
Current: $4,772 NZD|Low: $674 NZD|High: $6,741 NZD|Avg: $2,616 NZD|-24.9%
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 5, 2026
Retailer 4$674 NZD
Retailer 2$1,073 NZD
Retailer 8$1,288 NZD
Retailer 5$1,398 NZD
Retailer 7$1,659 NZD
Retailer 14$1,694 NZD
Retailer 15$1,737 NZD
Retailer 3$2,019 NZD
Retailer 10$2,163 NZD
Retailer 9$2,503 NZD
Retailer 6$3,422 NZD
Retailer 12$3,701 NZD
Retailer 11$3,894 NZD
Brilliant Earth$4,772 NZD
Retailer 13$6,457 NZD

16 data points across 15 retailers

7 retailers$1,073 NZD to $4,772 NZD

A
Cheapest Retailer
-
$1,073 NZD
A
Retailer 2
-
$1,288 NZD
View
A
Retailer 3
-
$2,163 NZD
View
B+
Retailer 4
-
$2,503 NZD
View
Retailer 5
-
$3,701 NZD
View
Price last confirmed 25 days ago
B
Retailer 6
-
$3,894 NZD
View
Most Expensive
B
Brilliant Earth
21731088Y · Nov 4
$4,772 NZD
$2,690 USD
View
6 more retailers have this diamond
Prices start from $1,073 NZDSave up to $3,699 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
$1,073 NZD