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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 $660 SGD
$516 USD
As of November 1, 2026
Save $2,673 SGD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,333 SGD at Helzberg Diamonds · As of November 1, 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 14 retailers as of November 1, 2026, with prices from $660 to $3,333, a $2,673 spread on the same certified stone. Helzberg Diamonds lists it at $3,333. 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

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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 1
Current: $3,333 SGD|Low: $660 SGD|High: $3,709 SGD|Avg: $1,827 SGD
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
November 2, 2026
Retailer 8$660 SGD
Retailer 2$726 SGD
Retailer 11$1,003 SGD
Retailer 10$1,101 SGD
Retailer 13$1,108 SGD
Retailer 7$1,156 SGD
Retailer 6$1,216 SGD
Retailer 3$1,326 SGD
Retailer 4$2,308 SGD
Retailer 5$2,446 SGD
Retailer 9$2,591 SGD
Retailer 12$3,300 SGD
Helzberg Diamonds$3,333 SGD

5 data points across 13 retailers

14 retailers$660 SGD to $3,333 SGD

A
Cheapest Retailer
-
$660 SGD
$516 USD
Final sale: no returns
A
Retailer 2
-
$726 SGD
£447 GBP
View
A
Retailer 3
-
$1,003 SGD
$784 USD
View
A
Retailer 4
-
$1,101 SGD
€820 EUR
View
A
Retailer 5
-
$1,108 SGD
$866 USD
View
A
Retailer 6
-
$1,156 SGD
£712 GBP
View
A
Retailer 7
-
$1,216 SGD
ZAR 15,361 ZAR
View
A
Retailer 8
-
$1,326 SGD
$1,037 USD
View
B
Retailer 9
-
$2,308 SGD
$1,805 USD
View
B
Retailer 10
-
$2,446 SGD
View
B
Retailer 11
-
$2,591 SGD
£1,595 GBP
View
B
Retailer 12
-
$2,615 SGD
$2,045 USD
View
B
Retailer 13
-
$3,300 SGD
$2,580 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMIPPKG · Nov 1
$3,333 SGD
$2,606 USD
View
13 more retailers have this diamond
Prices start from $660 SGDSave up to $2,673 SGD

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
$660 SGD