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Heart|Natural|IGI

1.20ct G SI1 Heart Natural Diamond

VG • G/SI1 • IGI 800626000

Shape and cutting style on the report: Heart brilliant

Certificate IGI 800626000

Diamond specifications and retailer prices

From $2,143 USD
As of November 6, 2026
Save $2,816 USD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,959 USD 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 800626000. Listed at 13 retailers as of November 5, 2026, with prices from $2,143 to $4,959, a $2,816 spread on the same certified stone. NZ Jewellers lists it at $4,959. 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
G
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle38.8°
OriginNatural
Grading LabIGI
CertificateIGI 800626000
Dimensions6.35 × 7.38 × 4.30 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizeNone
Top View
6.35 mm7.38 mm1.20 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 800626000
Side View
Table 62.0%Crown 36.6°Girdle: STK-THKPavilion 38.8°Culet: NoneDepth 58.3%

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: $4,959 USD|Low: $2,143 USD|High: $5,103 USD|Avg: $2,774 USD|-2.8%
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
November 6, 2026
Retailer 3$2,143 USD
Retailer 4$2,189 USD
Retailer 2$2,301 USD
Retailer 5$2,305 USD
Retailer 13$2,365 USD
Retailer 8$2,372 USD
Retailer 10$2,372 USD
Retailer 11$2,482 USD
Retailer 6$2,554 USD
Retailer 12$2,737 USD
Retailer 7$2,895 USD
Retailer 9$4,145 USD
NZ Jewellers$4,959 USD

29 data points across 13 retailers

13 retailers$2,143 USD to $4,959 USD

A
Cheapest Retailer
-
$2,143 USD
A
Retailer 2
-
$2,189 USD
View
Final sale: no returns
B+
Retailer 3
-
$2,301 USD
View
B+
Retailer 4
-
$2,305 USD
View
B+
Retailer 5
-
$2,365 USD
View
B+
Retailer 6
-
$2,372 USD
View
Retailer 7
-
$2,372 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$2,482 USD
View
B+
Retailer 9
-
$2,554 USD
View
B+
Retailer 10
-
$2,737 USD
View
B+
Retailer 11
-
$2,895 USD
View
B
Retailer 12
-
$4,145 USD
View
Most Expensive
B
NZ Jewellers
b104df6b-e2fb-4ddc-95b5-384121951bcc · Nov 5
$4,959 USD
View
12 more retailers have this diamond
Prices start from $2,143 USDSave up to $2,816 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
$2,143 USD