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Cushion|Lab Grown|IGI

1.54ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG627446733

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG627446733

Diamond specifications and retailer prices

From $787 AUD
As of November 4, 2026
Save $4,559 AUD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,346 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 LG627446733 or 627446733. Listed at 18 retailers as of November 4, 2026, with prices from $787 to $5,346, a $4,559 spread on the same certified stone. Brilliant Earth lists it at $5,346. 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 angle36.3°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627446733
Dimensions7.50 × 6.00 × 4.26 mm
L/W Ratio1.25
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
7.50 mm6.00 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627446733
Side View
Table 60.0%Crown 36.3°Girdle: STK-THKPavilion 38.4°Culet: NoneDepth 71.0%

Caratlytics Score

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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: $5,346 AUD|Low: $787 AUD|High: $5,616 AUD|Avg: $2,081 AUD|-2.1%
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 6$787 AUD
Retailer 4$871 AUD
Retailer 12$1,069 AUD
Retailer 9$1,169 AUD
Retailer 5$1,205 AUD
Retailer 11$1,327 AUD
Retailer 2$1,434 AUD
Retailer 8$1,502 AUD
Retailer 13$2,028 AUD
Retailer 7$2,053 AUD
Retailer 3$3,038 AUD
Retailer 10$3,636 AUD
Retailer 14$3,763 AUD
Brilliant Earth$5,346 AUD

45 data points across 14 retailers

18 retailers$787 AUD to $5,346 AUD

A
Cheapest Retailer
-
$787 AUD
Final sale: no returns
Retailer 2
-
$871 AUD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$1,069 AUD
View
A
Retailer 4
-
$1,169 AUD
View
A
Retailer 5
-
$1,205 AUD
View
A
Retailer 6
-
$1,327 AUD
View
A
Retailer 7
-
$1,434 AUD
View
A
Retailer 8
-
$1,502 AUD
View
A
Retailer 9
-
$1,584 AUD
View
A
Retailer 10
-
$2,028 AUD
View
B+
Retailer 11
-
$2,053 AUD
View
B+
Retailer 12
-
$2,838 AUD
View
B+
Retailer 13
-
$3,033 AUD
View
B+
Retailer 14
-
$3,038 AUD
View
B+
Retailer 15
-
$3,636 AUD
View
Retailer 16
-
$3,763 AUD
View
Price last confirmed 17 days ago
Retailer 17
-
$4,054 AUD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
9709984A · Nov 4
$5,346 AUD
$3,750 USD
View
17 more retailers have this diamond
Prices start from $787 AUDSave up to $4,559 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
$787 AUD