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Cushion|Lab Grown|IGI

2.54ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG815677110

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

Certificate IGI LG815677110

Diamond specifications and retailer prices

From $1,744 AUD
$1,225 USD
As of October 31, 2026
Save $5,929 AUD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,673 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.54ct lab-grown cushion diamond

This 2.54ct lab-grown cushion sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815677110 or 815677110. Listed at 16 retailers as of October 31, 2026, with prices from $1,744 to $7,673, a $5,929 spread on the same certified stone. Brilliant Earth lists it at $7,673. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.54
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815677110
Dimensions8.19 × 7.99 × 5.22 mm
L/W Ratio1.03
Girdle conditionFaceted
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
8.19 mm7.99 mm2.54 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815677110
Side View
Table 61.0%Crown 37.4°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 65.3%

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: Oct 31
Current: $7,673 AUD|Low: $1,744 AUD|High: $8,969 AUD|Avg: $4,587 AUD|-14.4%
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
Retailer 15
Retailer 16
November 1, 2026
Retailer 3$1,744 AUD
Retailer 7$1,946 AUD
Retailer 11$2,014 AUD
Retailer 2$2,617 AUD
Retailer 5$2,874 AUD
Retailer 10$2,876 AUD
Retailer 15$3,837 AUD
Retailer 9$4,288 AUD
Retailer 12$4,660 AUD
Retailer 8$4,708 AUD
Retailer 16$5,230 AUD
Retailer 14$5,759 AUD
Retailer 13$6,158 AUD
Retailer 4$6,313 AUD
Retailer 6$7,104 AUD
Brilliant Earth$7,673 AUD

38 data points across 16 retailers

16 retailers$1,744 AUD to $7,673 AUD

A
Cheapest Retailer
-
$1,744 AUD
$1,225 USD
Final sale: no returns
Retailer 2
-
$1,946 AUD
$1,367 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
$2,014 AUD
$1,415 USD
View
A
Retailer 4
-
$2,617 AUD
£1,448 GBP
View
A
Retailer 5
-
$2,874 AUD
$2,019 USD
View
A
Retailer 6
-
$2,876 AUD
€1,924 EUR
View
A
Retailer 7
-
$3,837 AUD
$2,695 USD
View
A
Retailer 8
-
$4,288 AUD
View
A
Retailer 9
-
$4,660 AUD
ZAR 52,882 ZAR
View
Retailer 10
-
$4,708 AUD
£2,604 GBP
View
Price last confirmed 20 days ago
B+
Retailer 11
-
$5,230 AUD
$3,674 USD
View
B+
Retailer 12
-
$5,759 AUD
$4,046 USD
View
B+
Retailer 13
-
$6,158 AUD
£3,406 GBP
View
B+
Retailer 14
-
$6,313 AUD
$4,435 USD
View
Retailer 15
-
$7,104 AUD
$4,990 USD
View
Price last confirmed 13 days ago
Most Expensive
B+
Brilliant Earth
21017069A · Oct 31
$7,673 AUD
$5,390 USD
View
15 more retailers have this diamond
Prices start from $1,744 AUDSave up to $5,929 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
2.54ct Cushion
$1,744 AUD