Round|Lab Grown|GCAL

2.57ct H SI1 Round Lab Grown Diamond

EX • H/SI1

Diamond specifications and retailer prices

From $559 CAD
As of November 5, 2026
Save $2,652 CAD (83%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,211 CAD at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

About this 2.57ct lab-grown round diamond

This 2.57ct lab-grown round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL. Listed at 8 retailers as of November 5, 2026, with prices from $559 to $3,211, a $2,652 spread on the same certified stone. Diamond Exchange Canada lists it at $3,211. 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
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGCAL
Dimensions8.78 × 8.80 × 5.43 mm
L/W Ratio1.00
Top View
8.78 mm8.80 mm2.57 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCuletDepth 61.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,211 CAD|Low: $448 CAD|High: $3,211 CAD|Avg: $1,215 CAD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 20, 2026
Retailer 6$448 CAD
Retailer 5$549 CAD
Retailer 2$559 CAD
Retailer 3$598 CAD
Retailer 4$1,975 CAD
Diamond Exchange Canada$3,211 CAD

7 data points across 6 retailers

8 retailers$559 CAD to $3,211 CAD

Retailer 1
-
$448 CAD
Price last confirmed 45 days ago
Retailer 2
-
$521 CAD
View
Price last confirmed 44 days ago
Retailer 3
-
$549 CAD
View
Price last confirmed 45 days ago
B+
Retailer 4
-
$559 CAD
View
Retailer 5
-
$598 CAD
View
Price last confirmed 12 days ago
Retailer 6
-
$700 CAD
View
Price last confirmed 52 days ago
Retailer 7
-
$1,975 CAD
View
Price last confirmed 46 days ago
Most Expensive
B+
Diamond Exchange Canada
1986528133 · Nov 5
$3,211 CAD
View
7 more retailers have this diamond
Prices start from $559 CADSave up to $2,652 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.

B+
2.57ct Round
$559 CAD