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Radiant|Lab Grown|IGI

2.57ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG700540698

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

Certificate IGI LG700540698

Diamond specifications and retailer prices

From $1,260 AUD
$885 USD
As of November 2, 2026
Save $6,655 AUD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,915 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG700540698 or 700540698. Listed at 12 retailers as of October 31, 2026, with prices from $1,260 to $7,915, a $6,655 spread on the same certified stone. Brilliant Earth lists it at $7,915. 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

2.57
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700540698
Dimensions9.74 × 6.50 × 4.65 mm
L/W Ratio1.50
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
9.74 mm6.50 mm2.57 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700540698
Side View
Table 63.0%Crown 40.9°Girdle: MED-STKPavilion 36°Culet: NoneDepth 71.5%

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: Nov 2
Current: $7,915 AUD|Low: $1,093 AUD|High: $8,342 AUD|Avg: $3,868 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
October 31, 2026
Retailer 4$1,093 AUD
Retailer 14$1,260 AUD
Retailer 3$1,315 AUD
Retailer 9$1,667 AUD
Retailer 2$1,818 AUD
Retailer 11$2,698 AUD
Retailer 5$2,925 AUD
Retailer 12$3,021 AUD
Retailer 8$4,753 AUD
Retailer 7$5,038 AUD
Retailer 13$5,944 AUD
Retailer 6$6,330 AUD
Retailer 10$7,787 AUD
Brilliant Earth$7,915 AUD

18 data points across 14 retailers

12 retailers$1,260 AUD to $7,915 AUD

A
Cheapest Retailer
-
$1,260 AUD
$885 USD
A
Retailer 2
-
$1,315 AUD
$924 USD
View
A
Retailer 3
-
$1,667 AUD
$1,171 USD
View
A
Retailer 4
-
$1,818 AUD
€1,216 EUR
View
Retailer 5
-
$2,698 AUD
$1,895 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$2,925 AUD
$2,055 USD
View
A
Retailer 7
-
$3,021 AUD
$2,122 USD
View
B+
Retailer 8
-
$4,753 AUD
£2,629 GBP
View
B+
Retailer 9
-
$5,038 AUD
View
B+
Retailer 10
-
$5,944 AUD
$4,175 USD
View
B
Retailer 11
-
$7,787 AUD
$5,470 USD
View
Most Expensive
B
Brilliant Earth
13959243Y · Oct 31
$7,915 AUD
$5,560 USD
View
11 more retailers have this diamond
Prices start from $1,260 AUDSave up to $6,655 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
$1,260 AUD