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Cushion|Lab Grown|IGI

1.54ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG742544026

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG742544026

Diamond specifications and retailer prices

From $898 AUD
As of November 4, 2026
Save $5,488 AUD (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,386 AUD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.54ct lab-grown cushion diamond

This 1.54ct 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 LG742544026 or 742544026. Listed at 21 retailers as of November 4, 2026, with prices from $898 to $6,386, a $5,488 spread on the same certified stone. Brilliant Earth lists it at $6,386. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742544026
Dimensions7.96 × 5.76 × 3.96 mm
L/W Ratio1.38
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
7.96 mm5.76 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742544026
Side View
Table 57.0%Crown 39.3°Girdle: STK-THKPavilion 34.4°Culet: NoneDepth 68.8%

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: $6,386 AUD|Low: $898 AUD|High: $6,386 AUD|Avg: $2,635 AUD|+6.4%
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
November 5, 2026
Retailer 9$898 AUD
Retailer 7$1,049 AUD
Retailer 13$1,148 AUD
Retailer 4$1,333 AUD
Retailer 8$1,511 AUD
Retailer 2$1,537 AUD
Retailer 11$1,715 AUD
Retailer 10$2,259 AUD
Retailer 14$2,316 AUD
Retailer 6$3,461 AUD
Retailer 5$3,567 AUD
Retailer 3$3,778 AUD
Retailer 12$4,316 AUD
Brilliant Earth$6,386 AUD

35 data points across 14 retailers

21 retailers$898 AUD to $6,386 AUD

A
Cheapest Retailer
-
$898 AUD
Final sale: no returns
Retailer 2
-
$995 AUD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$1,049 AUD
View
A
Retailer 4
-
$1,148 AUD
View
A
Retailer 5
-
$1,301 AUD
View
A
Retailer 6
-
$1,333 AUD
View
A
Retailer 7
-
$1,511 AUD
View
A
Retailer 8
-
$1,537 AUD
View
A
Retailer 9
-
$1,619 AUD
View
A
Retailer 10
-
$1,715 AUD
View
B+
Retailer 11
-
$2,259 AUD
View
B+
Retailer 12
-
$2,316 AUD
View
B+
Retailer 13
-
$2,888 AUD
View
B+
Retailer 14
-
$3,203 AUD
View
B+
Retailer 15
-
$3,223 AUD
View
B+
Retailer 16
-
$3,350 AUD
View
B+
Retailer 17
-
$3,461 AUD
View
Retailer 18
-
$3,567 AUD
View
Price last confirmed 28 days ago
Retailer 19
-
$3,778 AUD
View
Price last confirmed 17 days ago
B+
Retailer 20
-
$4,316 AUD
View
Most Expensive
B
Brilliant Earth
16392325A · Nov 4
$6,386 AUD
$4,480 USD
View
20 more retailers have this diamond
Prices start from $898 AUDSave up to $5,488 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
1.54ct Cushion
$898 AUD