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Oval|Lab Grown|IGI

2.57ct I SI1 Oval Lab Grown Diamond

EX • I/SI1 • IGI LG781651947

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG781651947

Diamond specifications and retailer prices

From $2,407 CAD
$1,720 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $2,407 CAD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG781651947 or 781651947. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781651947
Dimensions10.56 × 7.57 × 4.84 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.56 mm7.57 mm2.57 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781651947
Side View
Table 65.0%Crown 36.4°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $766 CAD|Low: $536 CAD|High: $1,443 CAD|Avg: $998 CAD|+42.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
April 14, 2026
Retailer 1$766 CAD
Retailer 4$851 CAD
Retailer 2$1,122 CAD
Retailer 3$1,443 CAD

9 data points across 4 retailers

1 retailer

B+
Brilliant Earth
18102149A · Oct 29
$2,407 CAD
$1,720 USD
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B+
2.57ct Oval
$2,407 CAD