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Heart|Natural|HRD

1.51ct K SI1 Heart Natural Diamond

EX • K/SI1 • HRD 250000199722

Certificate HRD 250000199722

Diamond specifications and retailer prices

From $3,417 CAD
As of November 4, 2026
Save $3,943 CAD (54%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $7,359 CAD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded K 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 HRD 250000199722. Listed at 5 retailers as of November 3, 2026, with prices from $3,417 to $7,359, a $3,943 spread on the same certified stone. NZ Jewellers lists it at $7,359. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.03°
Pavilion angle40.1°
OriginNatural
Grading LabHRD
CertificateHRD 250000199722
Dimensions6.97 × 8.20 × 4.61 mm
L/W Ratio1.18
Girdle conditionMedium
Top View
6.97 mm8.20 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 250000199722
Side View
Table 63.0%Crown 35.03°GirdlePavilion 40.1°CuletDepth 56.2%

Caratlytics Score

How it works →
A
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: Nov 4
Current: $7,359 CAD|Low: $3,417 CAD|High: $7,621 CAD|Avg: $4,896 CAD|-3.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 5$3,417 CAD
Retailer 3$3,521 CAD
Retailer 4$3,682 CAD
Retailer 6$4,418 CAD
Retailer 2$6,168 CAD
NZ Jewellers$7,359 CAD

15 data points across 6 retailers

5 retailers$3,417 CAD to $7,359 CAD

A
Cheapest Retailer
-
$3,417 CAD
A
Retailer 2
-
$3,521 CAD
View
B+
Retailer 3
-
$3,682 CAD
View
B
Retailer 4
-
$6,168 CAD
View
Most Expensive
B
NZ Jewellers
1a115bc5-5eb3-444d-a044-44d98997dc21 · Nov 3
$7,359 CAD
$5,232 USD
View
4 more retailers have this diamond
Prices start from $3,417 CADSave up to $3,943 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 Heart
$3,417 CAD