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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 HK$19,037 HKD
As of November 6, 2026
Save HK$21,968 HKD (54%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$41,005 HKD 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 HK$19,037 to HK$41,005, a HK$21,968 spread on the same certified stone. NZ Jewellers lists it at HK$41,005. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$41,005 HKD|Low: HK$19,037 HKD|High: HK$42,463 HKD|Avg: HK$27,281 HKD|-3.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 5HK$19,037 HKD
Retailer 3HK$19,617 HKD
Retailer 4HK$20,518 HKD
Retailer 6HK$24,617 HKD
Retailer 2HK$34,367 HKD
NZ JewellersHK$41,005 HKD

15 data points across 6 retailers

5 retailersHK$19,037 HKD to HK$41,005 HKD

A
Cheapest Retailer
-
HK$19,037 HKD
A
Retailer 2
-
HK$19,617 HKD
View
B+
Retailer 3
-
HK$20,518 HKD
View
B
Retailer 4
-
HK$34,367 HKD
View
Most Expensive
B
NZ Jewellers
1a115bc5-5eb3-444d-a044-44d98997dc21 · Nov 3
HK$41,005 HKD
$5,232 USD
View
4 more retailers have this diamond
Prices start from HK$19,037 HKDSave up to HK$21,968 HKD

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
HK$19,037 HKD