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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 $597 AUD
As of November 4, 2026
Save $4,150 AUD (87%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,747 AUD at Do Amore Diamonds · As of November 4, 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 4, 2026, with prices from $597 to $4,747, a $4,150 spread on the same certified stone. Do Amore Diamonds lists it at $4,747. 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
Colour
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

How it works →
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 4
Current: $4,747 AUD|Low: $597 AUD|High: $4,747 AUD|Avg: $2,159 AUD
Do Amore 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 5, 2026
Retailer 8$597 AUD
Retailer 14$877 AUD
Retailer 9$1,058 AUD
Retailer 5$1,129 AUD
Retailer 6$1,149 AUD
Retailer 2$1,183 AUD
Retailer 13$1,260 AUD
Retailer 11$1,705 AUD
Retailer 12$1,742 AUD
Retailer 4$2,128 AUD
Retailer 17$2,480 AUD
Retailer 7$2,569 AUD
Retailer 3$2,610 AUD
Retailer 10$2,679 AUD
Retailer 15$3,454 AUD
Retailer 16$3,542 AUD
Do Amore Diamonds$4,747 AUD

44 data points across 17 retailers

17 retailers$597 AUD to $4,747 AUD

A
Cheapest Retailer
-
$597 AUD
Final sale: no returns
A
Retailer 2
-
$877 AUD
View
A
Retailer 3
-
$1,058 AUD
View
A
Retailer 4
-
$1,129 AUD
View
A
Retailer 5
-
$1,149 AUD
View
A
Retailer 6
-
$1,183 AUD
View
A
Retailer 7
-
$1,260 AUD
View
A
Retailer 8
-
$1,705 AUD
View
A
Retailer 9
-
$1,742 AUD
View
B+
Retailer 10
-
$2,128 AUD
View
B+
Retailer 11
-
$2,480 AUD
View
B+
Retailer 12
-
$2,569 AUD
View
B+
Retailer 13
-
$2,610 AUD
View
B+
Retailer 14
-
$2,679 AUD
View
B+
Retailer 15
-
$3,454 AUD
View
Retailer 16
-
$3,542 AUD
View
Price last confirmed 17 days ago
Most Expensive
B
Do Amore Diamonds
27-0084420B7 · Nov 4
$4,747 AUD
$3,330 USD
View
16 more retailers have this diamond
Prices start from $597 AUDSave up to $4,150 AUD

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
$597 AUD