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Cushion|Lab Grown|IGI

1.51ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG782688901

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG782688901

Diamond specifications and retailer prices

From $419 USD
As of November 3, 2026
Save $2,911 USD (87%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,330 USD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG782688901 or 782688901. Listed at 17 retailers as of November 2, 2026, with prices from $419 to $3,330, a $2,911 spread on the same certified stone. Do Amore Diamonds lists it at $3,330. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782688901
Dimensions7.87 × 6.03 × 4.03 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizePointed
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
7.87 mm6.03 mm1.51 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782688901
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 35.8°Culet: NoneDepth 66.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: $3,330 USD|Low: $419 USD|High: $3,330 USD|Avg: $1,530 USD
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 7
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 3, 2026
Retailer 8$419 USD
Retailer 13$615 USD
Retailer 9$742 USD
Retailer 5$792 USD
Retailer 6$806 USD
Retailer 2$844 USD
Retailer 11$885 USD
Retailer 15$1,195 USD
Retailer 10$1,222 USD
Retailer 4$1,494 USD
Retailer 17$1,740 USD
Retailer 7$1,802 USD
Retailer 3$1,832 USD
Retailer 12$1,885 USD
Retailer 14$2,424 USD
Retailer 16$2,485 USD
Do Amore Diamonds$3,330 USD

43 data points across 17 retailers

17 retailers$419 USD to $3,330 USD

A
Cheapest Retailer
-
$419 USD
Final sale: no returns
A
Retailer 2
-
$615 USD
View
A
Retailer 3
-
$742 USD
View
A
Retailer 4
-
$792 USD
View
A
Retailer 5
-
$806 USD
View
A
Retailer 6
-
$844 USD
£665 GBP
View
A
Retailer 7
-
$885 USD
ZAR 14,291 ZAR
View
A
Retailer 8
-
$1,195 USD
A$1,838 AUD
View
A
Retailer 9
-
$1,222 USD
View
B+
Retailer 10
-
$1,494 USD
£1,176 GBP
View
B+
Retailer 11
-
$1,740 USD
View
B+
Retailer 12
-
$1,802 USD
View
B+
Retailer 13
-
$1,832 USD
SGD 2,475 SGD
View
B+
Retailer 14
-
$1,885 USD
£1,484 GBP
View
B+
Retailer 15
-
$2,424 USD
A$3,729 AUD
View
Retailer 16
-
$2,485 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Do Amore Diamonds
27-0084420B7 · Nov 2
$3,330 USD
View
16 more retailers have this diamond
Prices start from $419 USDSave up to $2,911 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
1.51ct Cushion
$419 USD