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Heart|Natural|IGI

1.21ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 788607601

Shape and cutting style on the report: Heart brilliant

Certificate IGI 788607601

Diamond specifications and retailer prices

From HK$14,092 HKD
As of November 4, 2026
Save HK$23,951 HKD (63%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$38,043 HKD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 788607601. Listed at 16 retailers as of November 3, 2026, with prices from HK$14,092 to HK$38,043, a HK$23,951 spread on the same certified stone. NZ Jewellers lists it at HK$38,043. 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

1.21
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 788607601
Dimensions6.57 × 7.20 × 4.42 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Top View
6.57 mm7.20 mm1.21 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 788607601
Side View
Table 62.0%Crown 37.3°Girdle: MED-THKPavilion 41.6°Culet: NoneDepth 61.4%

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$38,043 HKD|Low: HK$14,092 HKD|High: HK$38,043 HKD|Avg: HK$19,739 HKD|+13.2%
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
Retailer 16
November 4, 2026
Retailer 3HK$14,092 HKD
Retailer 7HK$14,389 HKD
Retailer 13HK$15,212 HKD
Retailer 16HK$15,526 HKD
Retailer 10HK$15,596 HKD
Retailer 2HK$15,871 HKD
Retailer 8HK$16,075 HKD
Retailer 12HK$16,317 HKD
Retailer 4HK$16,372 HKD
Retailer 14HK$16,678 HKD
Retailer 11HK$17,258 HKD
Retailer 5HK$17,995 HKD
Retailer 6HK$19,162 HKD
Retailer 9HK$21,208 HKD
Retailer 15HK$27,321 HKD
NZ JewellersHK$38,043 HKD

30 data points across 16 retailers

16 retailersHK$14,092 HKD to HK$38,043 HKD

A
Cheapest Retailer
-
HK$14,092 HKD
A
Retailer 2
-
HK$14,389 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$15,212 HKD
View
B+
Retailer 4
-
HK$15,526 HKD
View
A
Retailer 5
-
HK$15,596 HKD
View
B+
Retailer 6
-
HK$15,871 HKD
View
Retailer 7
-
HK$16,075 HKD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
HK$16,317 HKD
View
B+
Retailer 9
-
HK$16,372 HKD
View
B+
Retailer 10
-
HK$16,678 HKD
View
B+
Retailer 11
-
HK$17,258 HKD
View
B+
Retailer 12
-
HK$17,995 HKD
View
B+
Retailer 13
-
HK$19,162 HKD
View
B
Retailer 14
-
HK$21,208 HKD
View
B
Retailer 15
-
HK$27,321 HKD
View
Most Expensive
C
NZ Jewellers
e7f57f2b-408c-44ac-805d-a1c3ad3009ff · Nov 3
HK$38,043 HKD
$4,854 USD
View
15 more retailers have this diamond
Prices start from HK$14,092 HKDSave up to HK$23,951 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
1.21ct Heart
HK$14,092 HKD