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Heart|Natural|IGI

1.20ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 743513531

Shape and cutting style on the report: Heart brilliant

Certificate IGI 743513531

Diamond specifications and retailer prices

From $1,808 USD
As of November 4, 2026
Save $3,076 USD (63%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,884 USD at NZ Jewellers · As of November 3, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 743513531. Listed at 14 retailers as of November 3, 2026, with prices from $1,808 to $4,884, a $3,076 spread on the same certified stone. NZ Jewellers lists it at $4,884. 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
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle37.4°
OriginNatural
Grading LabIGI
CertificateIGI 743513531
Dimensions6.81 × 7.47 × 4.11 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Top View
6.81 mm7.47 mm1.20 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 743513531
Side View
Table 57.0%Crown 38°Girdle: STK-THKPavilion 37.4°Culet: NoneDepth 55.0%

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: $4,884 USD|Low: $1,808 USD|High: $4,884 USD|Avg: $2,436 USD
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
November 5, 2026
Retailer 4$1,808 USD
Retailer 5$1,848 USD
Retailer 9$1,949 USD
Retailer 6$1,988 USD
Retailer 11$2,002 USD
Retailer 13$2,002 USD
Retailer 3$2,040 USD
Retailer 12$2,095 USD
Retailer 7$2,212 USD
Retailer 14$2,310 USD
Retailer 2$2,443 USD
Retailer 10$2,723 USD
Retailer 8$3,498 USD
NZ Jewellers$4,884 USD

31 data points across 14 retailers

14 retailers$1,808 USD to $4,884 USD

A
Cheapest Retailer
-
$1,808 USD
B+
Retailer 2
-
$1,848 USD
View
Final sale: no returns
A
Retailer 3
-
$1,949 USD
View
A
Retailer 4
-
$1,988 USD
View
B+
Retailer 5
-
$2,002 USD
View
B+
Retailer 6
-
$2,002 USD
View
B+
Retailer 7
-
$2,040 USD
View
B+
Retailer 8
-
$2,095 USD
View
B+
Retailer 9
-
$2,212 USD
View
B+
Retailer 10
-
$2,310 USD
View
B+
Retailer 11
-
$2,443 USD
View
B
Retailer 12
-
$2,723 USD
View
B
Retailer 13
-
$3,498 USD
View
Most Expensive
C
NZ Jewellers
045ecf2b-a6fe-4461-baf6-c2eeecaa63b2 · Nov 3
$4,884 USD
View
13 more retailers have this diamond
Prices start from $1,808 USDSave up to $3,076 USD

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
$1,808 USD