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Radiant|Lab Grown|IGI

2.57ct F IF Radiant Lab Grown Diamond

GD • F/IF • IGI LG731565741

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG731565741

Diamond specifications and retailer prices

From $703 AUD
$494 USD
As of November 2, 2026
Save $7,141 AUD (91%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $7,844 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.57ct lab-grown radiant diamond

This 2.57ct lab-grown radiant sits in the two to three carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG731565741 or 731565741. Listed at 25 retailers as of October 31, 2026, with prices from $703 to $7,844, a $7,141 spread on the same certified stone. Brilliant Earth lists it at $7,844. 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

2.57
Carat
F
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731565741
Dimensions9.86 × 6.78 × 4.54 mm
L/W Ratio1.45
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
9.86 mm6.78 mm2.57 ctF / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731565741
Side View
Table 65.0%Crown 44.1°Girdle: MediumPavilion 35°Culet: NoneDepth 67.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $7,844 AUD|Low: $703 AUD|High: $10,165 AUD|Avg: $2,711 AUD|-22.8%
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
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 2, 2026
Retailer 9$703 AUD
Retailer 19$787 AUD
Retailer 7$789 AUD
Retailer 20$873 AUD
Retailer 2$923 AUD
Retailer 17$989 AUD
Retailer 4$1,227 AUD
Retailer 16$1,330 AUD
Retailer 21$1,371 AUD
Retailer 13$1,452 AUD
Retailer 18$2,013 AUD
Retailer 10$2,038 AUD
Retailer 22$2,106 AUD
Retailer 3$2,296 AUD
Retailer 11$2,844 AUD
Retailer 6$2,867 AUD
Retailer 15$2,907 AUD
Retailer 5$3,037 AUD
Retailer 8$3,266 AUD
Retailer 14$4,392 AUD
Retailer 12$5,979 AUD
Brilliant Earth$7,844 AUD

28 data points across 22 retailers

25 retailers$703 AUD to $7,844 AUD

A
Cheapest Retailer
-
$703 AUD
$494 USD
A
Retailer 2
-
$787 AUD
$553 USD
View
Final sale: no returns
A
Retailer 3
-
$789 AUD
$554 USD
View
A
Retailer 4
-
$873 AUD
$613 USD
View
A
Retailer 5
-
$923 AUD
£511 GBP
View
A
Retailer 6
-
$989 AUD
$695 USD
View
Retailer 7
-
$999 AUD
$702 USD
View
Price last confirmed 20 days ago
A
Retailer 8
-
$1,227 AUD
$862 USD
View
A
Retailer 9
-
$1,330 AUD
€890 EUR
View
A
Retailer 10
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$1,371 AUD
$963 USD
View
A
Retailer 11
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$1,452 AUD
£803 GBP
View
A
Retailer 12
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$2,013 AUD
$1,414 USD
View
A
Retailer 13
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$2,038 AUD
$1,431 USD
View
A
Retailer 14
-
$2,106 AUD
ZAR 23,904 ZAR
View
A
Retailer 15
-
$2,296 AUD
$1,613 USD
View
Retailer 16
-
$2,480 AUD
$1,742 USD
View
Price last confirmed 7 days ago
A
Retailer 17
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$2,844 AUD
$1,998 USD
View
B+
Retailer 18
-
$2,867 AUD
$2,014 USD
View
Retailer 19
-
$2,907 AUD
£1,608 GBP
View
Price last confirmed 21 days ago
B+
Retailer 20
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$3,037 AUD
$2,133 USD
View
B+
Retailer 21
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$3,045 AUD
$2,139 USD
View
B+
Retailer 22
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$3,266 AUD
$2,294 USD
View
Retailer 23
-
$4,392 AUD
£2,429 GBP
View
Price last confirmed 22 days ago
Retailer 24
-
$5,979 AUD
$4,200 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
15784517A · Oct 31
$7,844 AUD
$5,510 USD
View
24 more retailers have this diamond
Prices start from $703 AUDSave up to $7,141 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
2.57ct Radiant
$703 AUD