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Heart|Natural|IGI

1.51ct K SI1 Heart Natural Diamond

VG • K/SI1 • IGI 773617467

Shape and cutting style on the report: Heart brilliant

Certificate IGI 773617467

Diamond specifications and retailer prices

From HK$13,551 HKD
As of November 4, 2026
Save HK$22,736 HKD (63%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$36,287 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 773617467. Listed at 14 retailers as of November 4, 2026, with prices from HK$13,551 to HK$36,287, a HK$22,736 spread on the same certified stone. NZ Jewellers lists it at HK$36,287. 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
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle39.6°
OriginNatural
Grading LabIGI
CertificateIGI 773617467
Dimensions6.46 × 7.80 × 5.02 mm
L/W Ratio1.21
Girdle conditionFaceted
Top View
6.46 mm7.80 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 773617467
Side View
Table 56.0%Crown 39°Girdle: STK-THKPavilion 39.6°CuletDepth 64.4%

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 4
Current: HK$36,287 HKD|Low: HK$13,551 HKD|High: HK$37,988 HKD|Avg: HK$19,492 HKD|+6.7%
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 11HK$13,551 HKD
Retailer 10HK$14,068 HKD
Retailer 2HK$14,429 HKD
Retailer 8HK$14,875 HKD
Retailer 5HK$15,118 HKD
Retailer 13HK$15,565 HKD
Retailer 4HK$15,573 HKD
Retailer 6HK$15,949 HKD
Retailer 7HK$16,427 HKD
Retailer 3HK$17,164 HKD
Retailer 9HK$18,151 HKD
Retailer 12HK$25,981 HKD
NZ JewellersHK$36,287 HKD

38 data points across 13 retailers

14 retailersHK$13,551 HKD to HK$36,287 HKD

A
Cheapest Retailer
-
HK$13,551 HKD
A
Retailer 2
-
HK$14,068 HKD
View
A
Retailer 3
-
HK$14,429 HKD
View
A
Retailer 4
-
HK$14,875 HKD
View
B+
Retailer 5
-
HK$15,118 HKD
View
B+
Retailer 6
-
HK$15,565 HKD
View
Retailer 7
-
HK$15,573 HKD
View
Price last confirmed 9 days ago
Retailer 8
-
HK$15,573 HKD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
HK$15,949 HKD
View
B+
Retailer 10
-
HK$16,427 HKD
View
B+
Retailer 11
-
HK$17,164 HKD
View
B+
Retailer 12
-
HK$18,151 HKD
View
B+
Retailer 13
-
HK$25,981 HKD
View
Most Expensive
B
NZ Jewellers
adefc08f-653b-44a9-92f3-95acbb36c18e · Nov 5
HK$36,287 HKD
$4,630 USD
View
13 more retailers have this diamond
Prices start from HK$13,551 HKDSave up to HK$22,736 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$13,551 HKD