Oval|Lab Grown|IGI

2.57ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG618405396

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG618405396

Diamond specifications and retailer prices

From $485 CAD

$347 USD

As of October 24, 2026

Save $3,217 CAD (87%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $3,702 CAD at Brilliant Earth · As of October 26, 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 LG618405396 or 618405396. Listed at 14 retailers as of October 24, 2026, with prices from $485 to $3,702, a $3,217 spread on the same certified stone. Brilliant Earth lists it at $3,702. 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

Color

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.9°

Pavilion angle41.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG618405396

Dimensions10.87 × 7.80 × 4.87 mm

L/W Ratio1.39

Girdle conditionFaceted

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG618405396

Side View

Caratlytics Score

How it works →

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 24

Current: $3,702 CAD|Low: $401 CAD|High: $4,163 CAD|Avg: $1,207 CAD|-11.1%

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

October 26, 2026

Retailer 7$418 CAD

Retailer 10$485 CAD

Retailer 4$518 CAD

Retailer 15$518 CAD

Retailer 14$652 CAD

Retailer 9$782 CAD

Retailer 5$847 CAD

Retailer 2$901 CAD

Retailer 12$936 CAD

Retailer 3$1,043 CAD

Retailer 13$1,150 CAD

Retailer 11$1,591 CAD

Retailer 6$1,665 CAD

Retailer 8$2,077 CAD

Brilliant Earth$3,702 CAD

34 data points across 15 retailers

14 retailers$485 CAD to $3,702 CAD

Retailer 1

$418 CAD

$299 USD

Price last confirmed 7 days ago

Retailer 2

$485 CAD

$347 USD

View

Retailer 3

$518 CAD

$371 USD

View

Retailer 4

$518 CAD

$371 USD

View

Retailer 5

$652 CAD

£367 GBP

View

Price last confirmed 13 days ago

Retailer 6

$782 CAD

$560 USD

View

B+

Retailer 7

$847 CAD

$606 USD

View

Retailer 8

$901 CAD

£508 GBP

View

Retailer 9

$1,043 CAD

$747 USD

View

B+

Retailer 10

$1,150 CAD

$823 USD

View

B+

Retailer 11

$1,591 CAD

$1,139 USD

View

B+

Retailer 12

$1,665 CAD

$1,192 USD

View

Retailer 13

$2,077 CAD

£1,171 GBP

View

Most Expensive

Brilliant Earth

9066350A · Oct 26

$3,702 CAD

$2,650 USD

View

13 more retailers have this diamond

Prices start from $485 CADSave up to $3,217 CAD

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.

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2.57ct Oval

$485 CAD