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Heart|Natural|IGI

1.51ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 801638972

Shape and cutting style on the report: Heart brilliant

Certificate IGI 801638972

Diamond specifications and retailer prices

From HK$20,965 HKD
As of November 5, 2026
Save HK$27,972 HKD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$48,937 HKD at NZ Jewellers · As of November 5, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 801638972. Listed at 14 retailers as of November 5, 2026, with prices from HK$20,965 to HK$48,937, a HK$27,972 spread on the same certified stone. NZ Jewellers lists it at HK$48,937. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle42°
OriginNatural
Grading LabIGI
CertificateIGI 801638972
Dimensions6.37 × 8.03 × 4.75 mm
L/W Ratio1.26
Girdle conditionFaceted
Top View
6.37 mm8.03 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 801638972
Side View
Table 61.0%Crown 34.8°Girdle: STK-THKPavilion 42°Culet: NoneDepth 59.2%

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 5
Current: HK$48,937 HKD|Low: HK$20,965 HKD|High: HK$48,937 HKD|Avg: HK$26,838 HKD|+15.8%
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
Retailer 14
November 7, 2026
Retailer 7HK$20,965 HKD
Retailer 12HK$20,965 HKD
Retailer 13HK$21,600 HKD
Retailer 6HK$22,352 HKD
Retailer 8HK$22,399 HKD
Retailer 11HK$23,402 HKD
Retailer 5HK$24,265 HKD
Retailer 3HK$24,304 HKD
Retailer 9HK$24,523 HKD
Retailer 2HK$25,221 HKD
Retailer 4HK$27,008 HKD
Retailer 10HK$28,567 HKD
Retailer 14HK$39,030 HKD
NZ JewellersHK$48,937 HKD

16 data points across 14 retailers

14 retailersHK$20,965 HKD to HK$48,937 HKD

A
Cheapest Retailer
-
HK$20,965 HKD
A
Retailer 2
-
HK$20,965 HKD
View
A
Retailer 3
-
HK$21,600 HKD
View
Final sale: no returns
B+
Retailer 4
-
HK$22,352 HKD
View
A
Retailer 5
-
HK$22,399 HKD
View
B+
Retailer 6
-
HK$23,402 HKD
View
Retailer 7
-
HK$24,265 HKD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
HK$24,304 HKD
View
B+
Retailer 9
-
HK$24,523 HKD
View
B+
Retailer 10
-
HK$25,221 HKD
View
B+
Retailer 11
-
HK$27,008 HKD
View
B+
Retailer 12
-
HK$28,567 HKD
View
B
Retailer 13
-
HK$39,030 HKD
View
Most Expensive
C
NZ Jewellers
dbf0c786-3f3a-41e0-88f3-4c80d0f0fa6c · Nov 5
HK$48,937 HKD
$6,244 USD
View
13 more retailers have this diamond
Prices start from HK$20,965 HKDSave up to HK$27,972 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$20,965 HKD