Heart|Natural|IGI

1.51ct H SI1 Heart Natural Diamond

VG • H/SI1 • IGI 803629091

Shape and cutting style on the report: Heart brilliant

Certificate IGI 803629091

Diamond specifications and retailer prices

From HK$27,375 HKD
$3,489 USD
As of October 31, 2026
Save HK$24,650 HKD (47%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$55,864 HKD at NZ Jewellers · As of September 30, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 803629091. Listed at 18 retailers as of October 31, 2026, with a 90% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle42.9°
OriginNatural
Grading LabIGI
CertificateIGI 803629091
Dimensions6.83 × 7.93 × 4.86 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
6.83 mm7.93 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803629091
Side View
Table 61.0%Crown 33.3°Girdle: STK-THKPavilion 42.9°Culet: NoneDepth 61.3%

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: Oct 31
Current: HK$32,419 HKD|Low: HK$27,132 HKD|High: HK$54,267 HKD|Avg: HK$33,921 HKD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 8HK$27,375 HKD
Retailer 5HK$28,246 HKD
Retailer 10HK$28,717 HKD
Retailer 6HK$29,242 HKD
Retailer 9HK$29,809 HKD
Retailer 2HK$32,067 HKD
Retailer 3HK$32,264 HKD
Retailer 1HK$32,419 HKD
Retailer 7HK$38,240 HKD
Retailer 4HK$52,025 HKD

42 data points across 10 retailers

18 retailersHK$27,375 HKD to HK$52,025 HKD

A
Cheapest Retailer
-
HK$27,375 HKD
$3,489 USD
A
Retailer 2
-
HK$28,246 HKD
$3,600 USD
View
A
Retailer 3
-
HK$28,717 HKD
$3,660 USD
View
Final sale: no returns
A
Retailer 4
-
HK$29,242 HKD
$3,727 USD
View
A
Retailer 5
-
HK$29,809 HKD
$3,799 USD
View
Retailer 6
-
HK$32,067 HKD
$4,087 USD
View
Price last confirmed 48 days ago
Retailer 7
-
HK$32,067 HKD
$4,087 USD
View
Price last confirmed 32 days ago
Retailer 8
-
HK$32,067 HKD
$4,087 USD
View
Price last confirmed 32 days ago
Retailer 9
-
HK$32,067 HKD
$4,087 USD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
HK$32,264 HKD
$4,112 USD
View
A
Retailer 11
-
HK$32,419 HKD
£3,253 GBP
View
Retailer 12
-
HK$36,994 HKD
$4,715 USD
View
Price last confirmed 56 days ago
Retailer 13
-
HK$36,994 HKD
$4,715 USD
View
Price last confirmed 34 days ago
Retailer 14
-
HK$36,994 HKD
$4,715 USD
View
Price last confirmed 48 days ago
B+
Retailer 15
-
HK$38,240 HKD
ZAR 78,737 ZAR
View
B
Retailer 16
-
HK$52,025 HKD
£5,221 GBP
View
Retailer 17
-
HK$55,864 HKD
$7,120 USD
View
Price last confirmed 45 days ago
Most Expensive
NZ Jewellers
bcaa560b-3e42-4350-9057-7c6607ea81b5 · Sep 30
HK$55,864 HKD
$7,120 USD
View
Price last confirmed 33 days ago
17 more retailers have this diamond
Prices start from HK$27,375 HKDSave up to HK$24,650 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$27,375 HKD