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 $509 USD
As of October 30, 2026
Save $2,041 USD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,550 USD at Brilliant Earth · As of October 30, 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 October 30, 2026, with prices from $509 to $2,550, a $2,041 spread on the same certified stone. Brilliant Earth lists it at $2,550. 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
Color
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+
Exceptional
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: Oct 30
Current: $2,550 USD|Low: $486 USD|High: $3,300 USD|Avg: $1,375 USD|-22.7%
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
October 31, 2026
Retailer 10$509 USD
Retailer 6$539 USD
Retailer 3$773 USD
Retailer 15$815 USD
Retailer 4$848 USD
Retailer 8$848 USD
Retailer 2$890 USD
Retailer 9$927 USD
Retailer 5$1,034 USD
Retailer 14$1,298 USD
Retailer 7$1,765 USD
Retailer 11$1,884 USD
Retailer 13$1,991 USD
Retailer 12$2,045 USD
Brilliant Earth$2,550 USD

36 data points across 15 retailers

16 retailers$509 USD to $2,550 USD

A+
Cheapest Retailer
-
$509 USD
Final sale: no returns
A
Retailer 2
-
$539 USD
View
A
Retailer 3
-
$773 USD
View
A
Retailer 4
-
$815 USD
View
A
Retailer 5
-
$848 USD
View
A
Retailer 6
-
$848 USD
€808 EUR
View
A
Retailer 7
-
$890 USD
£701 GBP
View
A
Retailer 8
-
$927 USD
ZAR 14,970 ZAR
View
A
Retailer 9
-
$1,034 USD
View
B+
Retailer 10
-
$1,298 USD
View
B+
Retailer 11
-
$1,765 USD
View
B+
Retailer 12
-
$1,884 USD
SGD 2,546 SGD
View
Retailer 13
-
$1,991 USD
£1,568 GBP
View
Price last confirmed 10 days ago
Retailer 14
-
$2,045 USD
View
Price last confirmed 9 days ago
Retailer 15
-
$2,134 USD
£1,680 GBP
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
21420693A · Oct 30
$2,550 USD
View
15 more retailers have this diamond
Prices start from $509 USDSave up to $2,041 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
$509 USD