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Heart|Natural|IGI

1.20ct H SI1 Heart Natural Diamond

VG • H/SI1 • IGI 828653750

Shape and cutting style on the report: Heart brilliant

Certificate IGI 828653750

Diamond specifications and retailer prices

From $3,752 NZD
As of November 6, 2026
Save $5,105 NZD (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,857 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 828653750. Listed at 15 retailers as of November 5, 2026, with prices from $3,752 to $8,857, a $5,105 spread on the same certified stone. NZ Jewellers lists it at $8,857. 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

1.20
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle42°
OriginNatural
Grading LabIGI
CertificateIGI 828653750
Dimensions6.15 × 7.24 × 4.55 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizeNone
Top View
6.15 mm7.24 mm1.20 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 828653750
Side View
Table 61.0%Crown 35.5°Girdle: STK-THKPavilion 42°Culet: NoneDepth 62.8%

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: $8,857 NZD|Low: $3,752 NZD|High: $9,038 NZD|Avg: $4,908 NZD|-2.0%
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 7, 2026
Retailer 12$3,752 NZD
Retailer 10$3,833 NZD
Retailer 11$3,833 NZD
Retailer 13$4,028 NZD
Retailer 5$4,144 NZD
Retailer 4$4,237 NZD
Retailer 7$4,322 NZD
Retailer 8$4,346 NZD
Retailer 14$4,403 NZD
Retailer 6$4,457 NZD
Retailer 9$4,576 NZD
Retailer 15$4,793 NZD
Retailer 3$5,170 NZD
Retailer 2$7,235 NZD
NZ Jewellers$8,857 NZD

15 data points across 15 retailers

15 retailers$3,752 NZD to $8,857 NZD

A
Cheapest Retailer
-
$3,752 NZD
B+
Retailer 2
-
$3,833 NZD
View
Final sale: no returns
B+
Retailer 3
-
$3,833 NZD
View
B+
Retailer 4
-
$4,028 NZD
View
B+
Retailer 5
-
$4,144 NZD
View
B+
Retailer 6
-
$4,237 NZD
View
Retailer 7
-
$4,322 NZD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$4,346 NZD
View
B+
Retailer 9
-
$4,403 NZD
View
B+
Retailer 10
-
$4,457 NZD
View
B+
Retailer 11
-
$4,576 NZD
View
B+
Retailer 12
-
$4,793 NZD
View
B
Retailer 13
-
$5,170 NZD
View
B
Retailer 14
-
$7,235 NZD
View
Most Expensive
B
NZ Jewellers
05724fd7-2c60-418b-ab97-b3717312dcc7 · Nov 5
$8,857 NZD
$4,910 USD
View
14 more retailers have this diamond
Prices start from $3,752 NZDSave up to $5,105 NZD

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
1.20ct Heart
$3,752 NZD