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Cushion|Lab Grown|IGI

1.50ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG799671302

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

Certificate IGI LG799671302

Diamond specifications and retailer prices

From $1,494 NZD
As of November 3, 2026
Save $5,318 NZD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,812 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 LG799671302 or 799671302. Listed at 12 retailers as of November 3, 2026, with prices from $1,494 to $6,812, a $5,318 spread on the same certified stone. Brilliant Earth lists it at $6,812. 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 angle37.8°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799671302
Dimensions6.76 × 6.54 × 4.36 mm
L/W Ratio1.03
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
6.76 mm6.54 mm1.50 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799671302
Side View
Table 58.0%Crown 37.8°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 66.7%

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 3
Current: $6,812 NZD|Low: $1,494 NZD|High: $8,427 NZD|Avg: $3,839 NZD|-19.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 12$1,494 NZD
Retailer 9$1,671 NZD
Retailer 8$1,770 NZD
Retailer 3$2,019 NZD
Retailer 2$2,118 NZD
Retailer 6$2,182 NZD
Retailer 11$3,395 NZD
Retailer 7$4,666 NZD
Retailer 4$4,822 NZD
Retailer 5$5,638 NZD
Retailer 10$5,794 NZD
Brilliant Earth$6,812 NZD

41 data points across 12 retailers

12 retailers$1,494 NZD to $6,812 NZD

A
Cheapest Retailer
-
$1,494 NZD
A
Retailer 2
-
$1,671 NZD
View
A
Retailer 3
-
$1,770 NZD
View
A
Retailer 4
-
$2,019 NZD
View
A
Retailer 5
-
$2,118 NZD
View
A
Retailer 6
-
$2,182 NZD
View
B+
Retailer 7
-
$3,395 NZD
View
B
Retailer 8
-
$4,666 NZD
View
B
Retailer 9
-
$4,822 NZD
View
B
Retailer 10
-
$5,638 NZD
View
B
Retailer 11
-
$5,794 NZD
View
Most Expensive
B
Brilliant Earth
20869651Y · Nov 4
$6,812 NZD
$3,840 USD
View
11 more retailers have this diamond
Prices start from $1,494 NZDSave up to $5,318 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
$1,494 NZD