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Oval|Lab Grown|IGI

2.57ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG713594299

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG713594299

Diamond specifications and retailer prices

From $478 AUD
$336 USD
As of October 30, 2026
Save $2,739 AUD (85%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,217 AUD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 2.57ct lab-grown oval diamond

This 2.57ct lab-grown oval sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG713594299 or 713594299. Listed at 5 retailers as of October 28, 2026, with prices from $478 to $3,217, a $2,739 spread on the same certified stone. Brilliant Earth lists it at $3,217. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.57
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG713594299
Dimensions10.88 × 7.33 × 4.92 mm
L/W Ratio1.48
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.88 mm7.33 mm2.57 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG713594299
Side View
Table 59.0%Crown 38.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 67.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,217 AUD|Low: $478 AUD|High: $3,303 AUD|Avg: $1,522 AUD|-2.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 18, 2026
Retailer 6$478 AUD
Retailer 11$955 AUD
Retailer 7$1,022 AUD
Retailer 8$1,053 AUD
Retailer 5$1,209 AUD
Retailer 10$1,315 AUD
Retailer 9$1,418 AUD
Retailer 4$1,429 AUD
Retailer 3$2,115 AUD
Retailer 2$2,477 AUD
Brilliant Earth$3,217 AUD

9 data points across 11 retailers

5 retailers$478 AUD to $3,217 AUD

A
Cheapest Retailer
-
$478 AUD
$336 USD
Final sale: no returns
B+
Retailer 2
-
$1,209 AUD
$849 USD
View
B+
Retailer 3
-
$1,429 AUD
$1,004 USD
View
B
Retailer 4
-
$2,477 AUD
$1,740 USD
View
Most Expensive
B
Brilliant Earth
15304521A · Oct 28
$3,217 AUD
$2,260 USD
View
4 more retailers have this diamond
Prices start from $478 AUDSave up to $2,739 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 Oval
$478 AUD