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Heart|Natural|IGI

1.05ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 801638408

Shape and cutting style on the report: Heart brilliant

Certificate IGI 801638408

Diamond specifications and retailer prices

From HK$11,866 HKD
As of November 5, 2026
Save HK$6,996 HKD (37%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$18,862 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.05ct natural heart diamond

This 1.05ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 801638408. Listed at 2 retailers as of November 4, 2026, with prices from HK$11,866 to HK$18,862, a HK$6,996 spread on the same certified stone. MOH London lists it at HK$18,862. 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

1.05
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.9°
Pavilion angle39.5°
OriginNatural
Grading LabIGI
CertificateIGI 801638408
Dimensions6.17 × 7.08 × 4.12 mm
L/W Ratio1.15
Girdle conditionFaceted
Top View
6.17 mm7.08 mm1.05 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 801638408
Side View
Table 58.0%Crown 35.9°Girdle: MED-STKPavilion 39.5°CuletDepth 58.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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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$18,862 HKD|Low: HK$11,466 HKD|High: HK$20,484 HKD|Avg: HK$15,462 HKD|-7.8%
MOH London
Retailer 2
November 5, 2026
Retailer 2HK$11,866 HKD
MOH LondonHK$18,862 HKD

33 data points across 2 retailers

2 retailersHK$11,866 HKD to HK$18,862 HKD

B+
Cheapest Retailer
-
HK$11,866 HKD
Most Expensive
B
MOH London
A85465D55 · Nov 4
HK$18,862 HKD
£1,895 GBP
View
1 more retailer has this diamond
Prices start from HK$11,866 HKDSave up to HK$6,996 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.

B+
1.05ct Heart
HK$11,866 HKD