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Heart|Natural|IGI

1.57ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 742527632

Shape and cutting style on the report: Heart brilliant

Certificate IGI 742527632

Diamond specifications and retailer prices

From HK$18,371 HKD
As of November 6, 2026
Save HK$20,714 HKD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$48,992 HKD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.57ct natural heart diamond

This 1.57ct 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 742527632. Listed at 14 retailers as of November 4, 2026, with a 113% 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

1.57
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.8°
OriginNatural
Grading LabIGI
CertificateIGI 742527632
Dimensions6.65 × 8.19 × 4.92 mm
L/W Ratio1.23
Girdle conditionFaceted
Culet sizePointed
Top View
6.65 mm8.19 mm1.57 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 742527632
Side View
Table 62.0%Crown 35.2°Girdle: STK-THKPavilion 41.8°Culet: NoneDepth 60.1%

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$25,252 HKD|Low: HK$18,371 HKD|High: HK$39,657 HKD|Avg: HK$25,455 HKD|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 2HK$18,371 HKD
Retailer 7HK$21,004 HKD
Retailer 6HK$21,678 HKD
Retailer 3HK$22,423 HKD
Retailer 1HK$25,252 HKD
Retailer 4HK$28,599 HKD
Retailer 5HK$39,085 HKD

30 data points across 7 retailers

14 retailersHK$18,371 HKD to HK$39,085 HKD

A
Cheapest Retailer
-
HK$18,371 HKD
B+
Retailer 2
-
HK$20,981 HKD
View
B+
Retailer 3
-
HK$21,004 HKD
View
B+
Retailer 4
-
HK$21,678 HKD
View
A
Retailer 5
-
HK$22,423 HKD
View
Retailer 6
-
HK$23,434 HKD
View
Price last confirmed 30 days ago
Retailer 7
-
HK$23,434 HKD
View
Price last confirmed 30 days ago
Retailer 8
-
HK$24,335 HKD
View
Price last confirmed 37 days ago
B+
Retailer 9
-
HK$24,547 HKD
View
B+
Retailer 10
-
HK$25,252 HKD
View
Retailer 11
-
HK$27,039 HKD
View
Price last confirmed 39 days ago
B+
Retailer 12
-
HK$28,599 HKD
View
B
Retailer 13
-
HK$39,085 HKD
View
Most Expensive
NZ Jewellers
fc17d06e-797f-4cfc-ba76-2879ecdbce04 · Sep 30
HK$48,992 HKD
$6,251 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from HK$18,371 HKDSave up to HK$20,714 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
1.57ct Heart
HK$18,371 HKD