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Heart|Natural|IGI

1.20ct J SI2 Heart Natural Diamond

VG • J/SI2 • IGI 788607840

Shape and cutting style on the report: Heart brilliant

Certificate IGI 788607840

Diamond specifications and retailer prices

From $1,315 USD
As of November 6, 2026
Save $1,218 USD (48%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,635 USD at NZ Jewellers · As of September 18, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 788607840. Listed at 15 retailers as of November 2, 2026, with a 93% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 788607840
Dimensions6.60 × 7.42 × 4.24 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Top View
6.60 mm7.42 mm1.20 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 788607840
Side View
Table 56.0%Crown 34.1°Girdle: THK-VTKPavilion 40.8°Culet: NoneDepth 57.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,315 USD|Low: $1,261 USD|High: $2,642 USD|Avg: $1,661 USD|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$1,315 USD
Retailer 2$1,321 USD
Retailer 7$1,490 USD
Retailer 6$1,510 USD
Retailer 5$1,513 USD
Retailer 3$1,560 USD
Retailer 8$1,773 USD
Retailer 4$2,533 USD

15 data points across 8 retailers

15 retailers$1,315 USD to $2,533 USD

A
Cheapest Retailer
-
$1,315 USD
Final sale: no returns
A
Retailer 2
-
$1,321 USD
View
Retailer 3
-
$1,490 USD
View
Price last confirmed 54 days ago
Retailer 4
-
$1,490 USD
View
Price last confirmed 37 days ago
Retailer 5
-
$1,490 USD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
$1,510 USD
View
B+
Retailer 7
-
$1,513 USD
View
Retailer 8
-
$1,559 USD
View
Price last confirmed 37 days ago
B+
Retailer 9
-
$1,560 USD
View
Retailer 10
-
$1,720 USD
View
Price last confirmed 62 days ago
Retailer 11
-
$1,720 USD
View
Price last confirmed 53 days ago
Retailer 12
-
$1,720 USD
View
Price last confirmed 39 days ago
B
Retailer 13
-
$2,533 USD
View
Retailer 14
-
$3,635 USD
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
6f65f08b-1a75-4e65-a972-61815a910099 · Sep 18
$3,635 USD
View
Price last confirmed 49 days ago
14 more retailers have this diamond
Prices start from $1,315 USDSave up to $1,218 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
$1,315 USD