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 $784 USD
As of October 30, 2026
Save $1,822 USD (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,606 USD at Helzberg Diamonds · As of October 31, 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 8 retailers as of October 30, 2026, with prices from $784 to $2,606, a $1,822 spread on the same certified stone. Helzberg Diamonds lists it at $2,606. 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
Color
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

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $2,606 USD|Low: $784 USD|High: $2,900 USD|Avg: $1,548 USD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 3$784 USD
Retailer 5$866 USD
Retailer 2$912 USD
Retailer 6$1,037 USD
Retailer 7$1,805 USD
Retailer 8$1,913 USD
Retailer 4$2,580 USD
Helzberg Diamonds$2,606 USD

3 data points across 8 retailers

8 retailers$784 USD to $2,606 USD

A
Cheapest Retailer
-
$784 USD
A
Retailer 2
-
$866 USD
View
A
Retailer 3
-
$912 USD
£718 GBP
View
B+
Retailer 4
-
$1,037 USD
View
B
Retailer 5
-
$1,805 USD
View
B
Retailer 6
-
$1,913 USD
SGD 2,585 SGD
View
B
Retailer 7
-
$2,580 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMIPPKG · Oct 31
$2,606 USD
View
7 more retailers have this diamond
Prices start from $784 USDSave up to $1,822 USD

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
$784 USD