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Cushion|Lab Grown|IGI

1.38ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG840629940

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840629940

Diamond specifications and retailer prices

From $875 NZD
As of November 5, 2026
Save $3,761 NZD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,636 NZD at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

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 very-good cut grade and certified by IGI LG840629940 or 840629940. Listed at 16 retailers as of November 4, 2026, with prices from $875 to $4,636, a $3,761 spread on the same certified stone. Helzberg Diamonds lists it at $4,636. 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

1.38
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840629940
Dimensions8.18 × 5.62 × 3.75 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
8.18 mm5.62 mm1.38 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840629940
Side View
Table 58.0%Crown 34.7°Girdle: STK-THKPavilion 35°Culet: NoneDepth 66.7%

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: $4,636 NZD|Low: $875 NZD|High: $5,159 NZD|Avg: $2,380 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
November 5, 2026
Retailer 2$875 NZD
Retailer 9$884 NZD
Retailer 3$1,121 NZD
Retailer 15$1,348 NZD
Retailer 12$1,363 NZD
Retailer 7$1,395 NZD
Retailer 10$1,537 NZD
Retailer 5$1,690 NZD
Retailer 8$1,809 NZD
Retailer 13$2,076 NZD
Retailer 4$2,820 NZD
Retailer 14$3,289 NZD
Retailer 6$3,602 NZD
Retailer 11$4,305 NZD
Helzberg Diamonds$4,636 NZD

8 data points across 15 retailers

16 retailers$875 NZD to $4,636 NZD

A
Cheapest Retailer
-
$875 NZD
A
Retailer 2
-
$884 NZD
View
Final sale: no returns
A
Retailer 3
-
$1,121 NZD
View
A
Retailer 4
-
$1,348 NZD
View
A
Retailer 5
-
$1,363 NZD
View
A
Retailer 6
-
$1,395 NZD
View
A
Retailer 7
-
$1,537 NZD
View
A
Retailer 8
-
$1,690 NZD
View
B+
Retailer 9
-
$1,809 NZD
View
B+
Retailer 10
-
$2,076 NZD
View
B+
Retailer 11
-
$2,820 NZD
View
B
Retailer 12
-
$3,289 NZD
View
B
Retailer 13
-
$3,602 NZD
View
B
Retailer 14
-
$3,638 NZD
View
B
Retailer 15
-
$4,305 NZD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMIPPKG · Nov 4
$4,636 NZD
$2,606 USD
View
15 more retailers have this diamond
Prices start from $875 NZDSave up to $3,761 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