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Cushion|Lab Grown|IGI

1.38ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG840629762

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840629762

Diamond specifications and retailer prices

From $875 NZD
As of November 5, 2026
Save $3,963 NZD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,839 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.38ct lab-grown cushion diamond

This 1.38ct 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 LG840629762 or 840629762. Listed at 15 retailers as of November 4, 2026, with prices from $875 to $4,839, a $3,963 spread on the same certified stone. Brilliant Earth lists it at $4,839. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.38
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840629762
Dimensions8.02 × 5.51 × 3.86 mm
L/W Ratio1.46
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
8.02 mm5.51 mm1.38 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840629762
Side View
Table 62.0%Crown 35.7°Girdle: STK-THKPavilion 36.5°Culet: NoneDepth 70.1%

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: $4,839 NZD|Low: $875 NZD|High: $6,102 NZD|Avg: $2,424 NZD|-20.7%
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 2$875 NZD
Retailer 9$884 NZD
Retailer 12$1,363 NZD
Retailer 6$1,485 NZD
Retailer 10$1,537 NZD
Retailer 5$1,633 NZD
Retailer 3$1,690 NZD
Retailer 8$1,809 NZD
Retailer 13$2,076 NZD
Retailer 15$2,820 NZD
Retailer 14$3,289 NZD
Retailer 11$3,339 NZD
Retailer 4$3,638 NZD
Retailer 7$4,636 NZD
Brilliant Earth$4,839 NZD

11 data points across 15 retailers

15 retailers$875 NZD to $4,839 NZD

A
Cheapest Retailer
-
$875 NZD
A
Retailer 2
-
$884 NZD
View
Final sale: no returns
A
Retailer 3
-
$1,363 NZD
View
A
Retailer 4
-
$1,485 NZD
View
A
Retailer 5
-
$1,537 NZD
View
A
Retailer 6
-
$1,633 NZD
View
A
Retailer 7
-
$1,690 NZD
View
A
Retailer 8
-
$1,809 NZD
View
B+
Retailer 9
-
$2,076 NZD
View
B+
Retailer 10
-
$2,820 NZD
View
B+
Retailer 11
-
$3,289 NZD
View
B+
Retailer 12
-
$3,339 NZD
View
B
Retailer 13
-
$3,638 NZD
View
B
Retailer 14
-
$4,636 NZD
View
Most Expensive
B
Brilliant Earth
22310847A · Nov 4
$4,839 NZD
$2,720 USD
View
14 more retailers have this diamond
Prices start from $875 NZDSave up to $3,963 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
1.38ct Cushion
$875 NZD