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Cushion|Lab Grown|IGI

1.38ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG799648028

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG799648028

Diamond specifications and retailer prices

From $692 NZD
As of November 4, 2026
Save $3,542 NZD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,234 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 LG799648028 or 799648028. Listed at 16 retailers as of November 4, 2026, with prices from $692 to $4,234, a $3,542 spread on the same certified stone. Brilliant Earth lists it at $4,234. 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 angle33.7°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799648028
Dimensions8.09 × 5.77 × 3.71 mm
L/W Ratio1.40
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
8.09 mm5.77 mm1.38 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799648028
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 33.8°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,234 NZD|Low: $692 NZD|High: $5,870 NZD|Avg: $2,308 NZD|-27.9%
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 14$692 NZD
Retailer 7$959 NZD
Retailer 12$1,215 NZD
Retailer 10$1,233 NZD
Retailer 8$1,364 NZD
Retailer 6$1,375 NZD
Retailer 5$1,450 NZD
Retailer 15$1,653 NZD
Retailer 2$1,784 NZD
Retailer 9$1,928 NZD
Retailer 13$2,538 NZD
Retailer 11$3,227 NZD
Retailer 3$3,524 NZD
Retailer 4$3,638 NZD
Brilliant Earth$4,234 NZD

33 data points across 15 retailers

16 retailers$692 NZD to $4,234 NZD

A
Cheapest Retailer
-
$692 NZD
Final sale: no returns
Retailer 2
-
$959 NZD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$1,215 NZD
View
A
Retailer 4
-
$1,233 NZD
View
A
Retailer 5
-
$1,364 NZD
View
A
Retailer 6
-
$1,375 NZD
View
A
Retailer 7
-
$1,450 NZD
View
A
Retailer 8
-
$1,653 NZD
View
A
Retailer 9
-
$1,784 NZD
View
A
Retailer 10
-
$1,928 NZD
View
B+
Retailer 11
-
$2,538 NZD
View
B+
Retailer 12
-
$3,227 NZD
View
B+
Retailer 13
-
$3,524 NZD
View
B
Retailer 14
-
$3,638 NZD
View
Retailer 15
-
$3,794 NZD
View
Price last confirmed 27 days ago
Most Expensive
B
Brilliant Earth
21420693A · Nov 4
$4,234 NZD
$2,380 USD
View
15 more retailers have this diamond
Prices start from $692 NZDSave up to $3,542 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
$692 NZD