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Cushion|Lab Grown|IGI

1.37ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG840635023

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840635023

Diamond specifications and retailer prices

From $870 NZD
As of November 5, 2026
Save $3,745 NZD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,614 NZD at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

About this 1.37ct lab-grown cushion diamond

This 1.37ct 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 LG840635023 or 840635023. Listed at 16 retailers as of November 4, 2026, with prices from $870 to $4,614, a $3,745 spread on the same certified stone. Helzberg Diamonds lists it at $4,614. 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

1.37
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840635023
Dimensions8.38 × 5.51 × 3.77 mm
L/W Ratio1.52
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
8.38 mm5.51 mm1.37 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840635023
Side View
Table 61.0%Crown 35.2°Girdle: MED-THKPavilion 37.2°Culet: NoneDepth 68.4%

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 5
Current: $4,614 NZD|Low: $870 NZD|High: $5,319 NZD|Avg: $2,388 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$870 NZD
Retailer 12$879 NZD
Retailer 13$1,356 NZD
Retailer 7$1,388 NZD
Retailer 6$1,476 NZD
Retailer 9$1,525 NZD
Retailer 5$1,624 NZD
Retailer 4$1,679 NZD
Retailer 8$1,786 NZD
Retailer 14$2,060 NZD
Retailer 3$2,802 NZD
Retailer 15$3,257 NZD
Retailer 10$3,316 NZD
Retailer 11$4,269 NZD
Helzberg Diamonds$4,614 NZD

21 data points across 15 retailers

16 retailers$870 NZD to $4,614 NZD

A
Cheapest Retailer
-
$870 NZD
A
Retailer 2
-
$879 NZD
View
Final sale: no returns
A
Retailer 3
-
$1,356 NZD
View
A
Retailer 4
-
$1,388 NZD
View
A
Retailer 5
-
$1,476 NZD
View
A
Retailer 6
-
$1,525 NZD
View
A
Retailer 7
-
$1,624 NZD
View
A
Retailer 8
-
$1,679 NZD
View
A
Retailer 9
-
$1,786 NZD
View
B+
Retailer 10
-
$2,060 NZD
View
B+
Retailer 11
-
$2,802 NZD
View
B+
Retailer 12
-
$3,257 NZD
View
B
Retailer 13
-
$3,316 NZD
View
B
Retailer 14
-
$3,620 NZD
View
B
Retailer 15
-
$4,269 NZD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJLGIJ · Nov 4
$4,614 NZD
$2,594 USD
View
15 more retailers have this diamond
Prices start from $870 NZDSave up to $3,745 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
1.37ct Cushion
$870 NZD