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Marquise|Natural|HRD

1.51ct K SI2 Marquise Natural Diamond

ID • K/SI2 • HRD 260000120840

Certificate HRD 260000120840

Diamond specifications and retailer prices

From $4,676 CAD
As of November 1, 2026
Save $4,131 CAD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,175 CAD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 260000120840. Listed at 11 retailers as of November 1, 2026, with a 88% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
K
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle40.95°
Pavilion angle40.56°
OriginNatural
Grading LabHRD
CertificateHRD 260000120840
Dimensions10.42 × 5.89 × 3.99 mm
L/W Ratio1.77
Girdle conditionVery Thick
Top View
10.42 mm5.89 mm1.51 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateHRD 260000120840
Side View
Table 60.0%Crown 40.95°GirdlePavilion 40.56°Culet: NoneDepth 67.8%

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 1
Current: $9,175 CAD|Low: $4,123 CAD|High: $9,175 CAD|Avg: $5,799 CAD|+6.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 11$4,141 CAD
Retailer 3$4,290 CAD
Retailer 9$4,676 CAD
Retailer 10$4,882 CAD
Retailer 4$5,266 CAD
Retailer 8$5,266 CAD
Retailer 7$5,469 CAD
Retailer 6$6,077 CAD
Retailer 2$6,162 CAD
Retailer 5$8,807 CAD
NZ Jewellers$9,175 CAD

34 data points across 11 retailers

11 retailers$4,676 CAD to $8,807 CAD

B+
Cheapest Retailer
-
$4,676 CAD
B+
Retailer 2
-
$4,882 CAD
View
A
Retailer 3
-
$5,266 CAD
View
Retailer 4
-
$5,266 CAD
View
Price last confirmed 19 days ago
Retailer 5
-
$5,266 CAD
View
Price last confirmed 12 days ago
Retailer 6
-
$5,469 CAD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$6,077 CAD
View
B+
Retailer 8
-
$6,162 CAD
View
B
Retailer 9
-
$8,807 CAD
View
Retailer 10
-
$9,175 CAD
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
4057d7b5-d185-4d5f-9ce4-0913e573b37c · Oct 17
$9,175 CAD
$6,523 USD
View
Price last confirmed 19 days ago
10 more retailers have this diamond
Prices start from $4,676 CADSave up to $4,131 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
1.51ct Marquise
$4,676 CAD