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Heart|Natural|IGI

1.51ct G SI1 Heart Natural Diamond

VG • G/SI1 • IGI 801639168

Shape and cutting style on the report: Heart brilliant

Certificate IGI 801639168

Diamond specifications and retailer prices

From HK$25,730 HKD
As of November 5, 2026
Save HK$24,766 HKD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$50,496 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 801639168. Listed at 15 retailers as of November 5, 2026, with prices from HK$25,730 to HK$50,496, a HK$24,766 spread on the same certified stone. NZ Jewellers lists it at HK$50,496. 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
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 801639168
Dimensions7.04 × 7.68 × 4.70 mm
L/W Ratio1.09
Girdle conditionFaceted
Top View
7.04 mm7.68 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 801639168
Side View
Table 61.0%Crown 36.5°Girdle: STK-THKPavilion 41.3°Culet: NoneDepth 61.2%

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 5
Current: HK$50,496 HKD|Low: HK$25,730 HKD|High: HK$52,589 HKD|Avg: HK$32,654 HKD|-4.0%
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
Retailer 15
November 6, 2026
Retailer 13HK$25,730 HKD
Retailer 15HK$26,749 HKD
Retailer 5HK$26,804 HKD
Retailer 2HK$27,164 HKD
Retailer 7HK$27,306 HKD
Retailer 12HK$28,983 HKD
Retailer 3HK$30,103 HKD
Retailer 9HK$30,127 HKD
Retailer 6HK$30,182 HKD
Retailer 10HK$30,542 HKD
Retailer 4HK$33,442 HKD
Retailer 8HK$33,748 HKD
Retailer 11HK$35,378 HKD
Retailer 14HK$48,341 HKD
NZ JewellersHK$50,496 HKD

18 data points across 15 retailers

15 retailersHK$25,730 HKD to HK$50,496 HKD

A
Cheapest Retailer
-
HK$25,730 HKD
A
Retailer 2
-
HK$26,749 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$26,804 HKD
View
A
Retailer 4
-
HK$27,164 HKD
View
A
Retailer 5
-
HK$27,306 HKD
View
A
Retailer 6
-
HK$28,983 HKD
View
A
Retailer 7
-
HK$30,103 HKD
View
A
Retailer 8
-
HK$30,127 HKD
View
Retailer 9
-
HK$30,182 HKD
View
Price last confirmed 9 days ago
A
Retailer 10
-
HK$30,542 HKD
View
A
Retailer 11
-
HK$33,442 HKD
View
A
Retailer 12
-
HK$33,748 HKD
View
A
Retailer 13
-
HK$35,378 HKD
View
B+
Retailer 14
-
HK$48,341 HKD
View
Most Expensive
B
NZ Jewellers
486ccb40-1214-460a-8f96-964fb2254931 · Nov 5
HK$50,496 HKD
$6,443 USD
View
14 more retailers have this diamond
Prices start from HK$25,730 HKDSave up to HK$24,766 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$25,730 HKD