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Cushion|Lab Grown|IGI

2.59ct E IF Cushion Lab Grown Diamond

GD • E/IF • IGI LG728517095

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG728517095

Diamond specifications and retailer prices

From $1,714 AUD
$1,204 USD
As of October 28, 2026
Save $7,154 AUD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,868 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.59ct lab-grown cushion diamond

This 2.59ct lab-grown cushion sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG728517095 or 728517095. Listed at 18 retailers as of October 28, 2026, with prices from $1,714 to $8,868, a $7,154 spread on the same certified stone. Brilliant Earth lists it at $8,868. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.59
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728517095
Dimensions9.43 × 7.28 × 4.99 mm
L/W Ratio1.30
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
9.43 mm7.28 mm2.59 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728517095
Side View
Table 63.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 68.5%

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 28
Current: $8,868 AUD|Low: $1,714 AUD|High: $9,138 AUD|Avg: $4,576 AUD|-3.0%
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
Retailer 17
Retailer 18
October 29, 2026
Retailer 14$1,714 AUD
Retailer 9$1,919 AUD
Retailer 17$2,142 AUD
Retailer 6$2,225 AUD
Retailer 2$2,565 AUD
Retailer 5$2,673 AUD
Retailer 11$2,849 AUD
Retailer 16$3,958 AUD
Retailer 7$4,549 AUD
Retailer 18$4,576 AUD
Retailer 12$4,582 AUD
Retailer 13$5,249 AUD
Retailer 10$5,293 AUD
Retailer 15$5,676 AUD
Retailer 3$6,031 AUD
Retailer 4$6,205 AUD
Retailer 8$7,238 AUD
Brilliant Earth$8,868 AUD

36 data points across 18 retailers

18 retailers$1,714 AUD to $8,868 AUD

A
Cheapest Retailer
-
$1,714 AUD
$1,204 USD
Final sale: no returns
A
Retailer 2
-
$1,919 AUD
$1,348 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$2,142 AUD
$1,505 USD
View
A
Retailer 4
-
$2,225 AUD
$1,563 USD
View
A
Retailer 5
-
$2,565 AUD
£1,419 GBP
View
A
Retailer 6
-
$2,673 AUD
$1,878 USD
View
A
Retailer 7
-
$2,849 AUD
€1,906 EUR
View
B+
Retailer 8
-
$3,958 AUD
$2,781 USD
View
B+
Retailer 9
-
$4,549 AUD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$4,576 AUD
$3,215 USD
View
B+
Retailer 11
-
$4,582 AUD
ZAR 52,006 ZAR
View
B+
Retailer 12
-
$5,249 AUD
$3,688 USD
View
B+
Retailer 13
-
$5,293 AUD
£2,928 GBP
View
Price last confirmed 18 days ago
B+
Retailer 14
-
$5,676 AUD
$3,988 USD
View
B+
Retailer 15
-
$6,031 AUD
£3,336 GBP
View
B+
Retailer 16
-
$6,205 AUD
$4,359 USD
View
B+
Retailer 17
-
$7,238 AUD
$5,085 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
15521568A · Oct 29
$8,868 AUD
$6,230 USD
View
17 more retailers have this diamond
Prices start from $1,714 AUDSave up to $7,154 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
2.59ct Cushion
$1,714 AUD