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Cushion|Lab Grown|IGI

1.51ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG751506379

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

Certificate IGI LG751506379

Diamond specifications and retailer prices

From $527 AUD
As of November 4, 2026
Save $3,664 AUD (87%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,191 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 LG751506379 or 751506379. Listed at 20 retailers as of November 4, 2026, with prices from $527 to $4,191, a $3,664 spread on the same certified stone. Do Amore Diamonds lists it at $4,191. 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 angle33°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG751506379
Dimensions6.85 × 6.69 × 4.34 mm
L/W Ratio1.02
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
6.85 mm6.69 mm1.51 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG751506379
Side View
Table 61.0%Crown 33°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 64.9%

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: $4,191 AUD|Low: $527 AUD|High: $5,616 AUD|Avg: $2,255 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
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Retailer 17
Retailer 18
November 5, 2026
Retailer 8$527 AUD
Retailer 12$805 AUD
Retailer 17$821 AUD
Retailer 15$841 AUD
Retailer 4$951 AUD
Retailer 13$1,113 AUD
Retailer 3$1,135 AUD
Retailer 2$1,155 AUD
Retailer 11$1,505 AUD
Retailer 6$2,210 AUD
Retailer 5$2,289 AUD
Retailer 10$2,299 AUD
Retailer 9$2,354 AUD
Retailer 7$2,519 AUD
Retailer 14$2,523 AUD
Retailer 18$3,564 AUD
Retailer 16$4,034 AUD
Do Amore Diamonds$4,191 AUD

43 data points across 18 retailers

20 retailers$527 AUD to $4,191 AUD

A
Cheapest Retailer
-
$527 AUD
Final sale: no returns
A
Retailer 2
-
$805 AUD
View
A
Retailer 3
-
$821 AUD
View
A
Retailer 4
-
$841 AUD
View
A
Retailer 5
-
$951 AUD
View
A
Retailer 6
-
$1,113 AUD
View
A
Retailer 7
-
$1,135 AUD
View
A
Retailer 8
-
$1,155 AUD
View
A
Retailer 9
-
$1,505 AUD
View
B+
Retailer 10
-
$2,190 AUD
View
Retailer 11
-
$2,210 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$2,289 AUD
View
B+
Retailer 13
-
$2,299 AUD
View
B+
Retailer 14
-
$2,354 AUD
View
B+
Retailer 15
-
$2,519 AUD
View
B+
Retailer 16
-
$2,523 AUD
View
Retailer 17
-
$3,564 AUD
View
Price last confirmed 17 days ago
B
Retailer 18
-
$4,034 AUD
View
Retailer 19
-
$4,054 AUD
View
Price last confirmed 9 days ago
Most Expensive
B
Do Amore Diamonds
27-3ED74AAD0 · Nov 4
$4,191 AUD
$2,940 USD
View
19 more retailers have this diamond
Prices start from $527 AUDSave up to $3,664 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
$527 AUD