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Oval|Natural|GIA

1.28ct M SI1 Oval Natural Diamond

ID • M/SI1 • GIA 6445428290

Certificate GIA 6445428290

Diamond specifications and retailer prices

From $1,890 CAD
As of November 6, 2026
Save $4,351 CAD (70%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,241 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.28ct natural oval diamond

This 1.28ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6445428290. Listed at 12 retailers as of November 5, 2026, with prices from $1,890 to $6,241, a $4,351 spread on the same certified stone. NZ Jewellers lists it at $6,241. 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

1.28
Carat
M
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6445428290
Dimensions8.30 × 5.71 × 3.95 mm
L/W Ratio1.45
Top View
8.30 mm5.71 mm1.28 ctM / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6445428290
Side View
Table 56.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 69.2%

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: Nov 6
Current: $6,241 CAD|Low: $1,872 CAD|High: $6,328 CAD|Avg: $2,960 CAD|-1.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 7$1,890 CAD
Retailer 3$2,336 CAD
Retailer 5$2,509 CAD
Retailer 8$2,559 CAD
Retailer 11$2,559 CAD
Retailer 4$2,594 CAD
Retailer 9$2,637 CAD
Retailer 13$2,677 CAD
Retailer 10$2,751 CAD
Retailer 12$2,952 CAD
Retailer 6$3,123 CAD
Retailer 2$3,474 CAD
NZ Jewellers$6,241 CAD

32 data points across 13 retailers

12 retailers$1,890 CAD to $6,241 CAD

A
Cheapest Retailer
-
$1,890 CAD
A
Retailer 2
-
$2,336 CAD
View
Retailer 3
-
$2,559 CAD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$2,559 CAD
View
B+
Retailer 5
-
$2,594 CAD
View
B+
Retailer 6
-
$2,637 CAD
View
B+
Retailer 7
-
$2,677 CAD
View
B+
Retailer 8
-
$2,751 CAD
View
B+
Retailer 9
-
$2,952 CAD
View
B+
Retailer 10
-
$3,123 CAD
View
B
Retailer 11
-
$3,474 CAD
View
Most Expensive
B
NZ Jewellers
0aa3f585-1d3d-4c76-8aa9-2cace6c3caa2 · Nov 5
$6,241 CAD
$4,437 USD
View
11 more retailers have this diamond
Prices start from $1,890 CADSave up to $4,351 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
1.28ct Oval
$1,890 CAD