Cushion|Lab Grown|IGI

1.38ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG800676790

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG800676790

Diamond specifications and retailer prices

From $623 USD
As of October 30, 2026
Save $2,767 USD (82%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,390 USD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore 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 top-tier cut grade and certified by IGI LG800676790 or 800676790. Listed at 9 retailers as of October 30, 2026, with prices from $623 to $3,390, a $2,767 spread on the same certified stone. Do Amore Diamonds lists it at $3,390. 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 angle35.2°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800676790
Dimensions6.64 × 6.45 × 4.19 mm
L/W Ratio1.03
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
6.64 mm6.45 mm1.38 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800676790
Side View
Table 63.0%Crown 35.2°Girdle: STK-THKPavilion 38.3°Culet: NoneDepth 65.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $3,390 USD|Low: $336 USD|High: $3,650 USD|Avg: $1,447 USD|-7.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10$470 USD
Retailer 5$623 USD
Retailer 2$700 USD
Retailer 6$755 USD
Retailer 9$809 USD
Retailer 4$882 USD
Retailer 7$1,924 USD
Retailer 8$2,025 USD
Retailer 3$2,360 USD
Do Amore Diamonds$3,390 USD

26 data points across 10 retailers

9 retailers$623 USD to $3,390 USD

A
Cheapest Retailer
-
$623 USD
A
Retailer 2
-
$700 USD
View
A
Retailer 3
-
$755 USD
View
A
Retailer 4
-
$809 USD
View
A
Retailer 5
-
$882 USD
€840 EUR
View
B+
Retailer 6
-
$1,924 USD
£1,515 GBP
View
Retailer 7
-
$2,025 USD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$2,360 USD
View
Most Expensive
B
Do Amore Diamonds
27-0D18732B5 · Oct 30
$3,390 USD
View
8 more retailers have this diamond
Prices start from $623 USDSave up to $2,767 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
$623 USD