CaratHunter
Plans
Round|Lab Grown|IGI

2.57ct J VS1 Round Lab Grown Diamond

ID • J/VS1 • IGI LG517284792

Shape and cutting style on the report: Round brilliant

Certificate IGI LG517284792

Diamond specifications and retailer prices

From $829 CAD
$592 USD
As of October 29, 2026
Save $3,636 CAD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,578 CAD at Rare Carat · As of July 12, 2026
View at Rare Carat

About this 2.57ct lab-grown round diamond

This 2.57ct lab-grown round sits in the two to three carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG517284792 or 517284792. Listed at 15 retailers as of October 26, 2026, with a 439% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG517284792
Dimensions8.79 × 8.75 × 5.45 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.79 mm8.75 mm2.57 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG517284792
Side View
Table 56.5%Crown 34.4°Girdle: MediumPavilion 41°Culet: NoneDepth 62.2%

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 29
Current: $7,578 CAD|Low: $661 CAD|High: $7,578 CAD|Avg: $2,513 CAD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 9$829 CAD
Retailer 13$927 CAD
Retailer 10$1,027 CAD
Retailer 6$1,211 CAD
Retailer 12$1,381 CAD
Retailer 11$1,576 CAD
Retailer 3$1,677 CAD
Retailer 5$2,151 CAD
Retailer 2$2,478 CAD
Retailer 8$2,549 CAD
Retailer 4$3,323 CAD
Retailer 7$4,465 CAD
Rare Carat$7,578 CAD

25 data points across 13 retailers

15 retailers$829 CAD to $4,465 CAD

A
Cheapest Retailer
-
$829 CAD
$592 USD
A
Retailer 2
-
$927 CAD
$662 USD
View
Final sale: no returns
A
Retailer 3
-
$928 CAD
$663 USD
View
A
Retailer 4
-
$1,027 CAD
$734 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$1,027 CAD
$734 USD
View
A
Retailer 6
-
$1,211 CAD
$865 USD
View
A
Retailer 7
-
$1,381 CAD
$987 USD
View
A
Retailer 8
-
$1,576 CAD
$1,126 USD
View
A
Retailer 9
-
$1,677 CAD
$1,198 USD
View
A
Retailer 10
-
$2,478 CAD
ZAR 28,606 ZAR
View
A
Retailer 11
-
$2,549 CAD
$1,821 USD
View
A
Retailer 12
-
$2,701 CAD
$1,930 USD
View
A
Retailer 13
-
$3,323 CAD
$2,374 USD
View
A
Retailer 14
-
$4,465 CAD
£2,512 GBP
View
Most Expensive
B
Rare Carat
919459 · Jul 12
$7,578 CAD
$5,414 USD
View
Price last confirmed 109 days ago
14 more retailers have this diamond
Prices start from $829 CADSave up to $3,636 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.

A
2.57ct Round
$829 CAD