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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 $1,685 SGD
As of November 6, 2026
Save $1,561 SGD (48%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,659 SGD 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
Colour
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

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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: $1,685 SGD|Low: $1,616 SGD|High: $3,386 SGD|Avg: $2,129 SGD|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$1,685 SGD
Retailer 2$1,693 SGD
Retailer 7$1,910 SGD
Retailer 6$1,935 SGD
Retailer 5$1,939 SGD
Retailer 3$1,999 SGD
Retailer 8$2,272 SGD
Retailer 4$3,246 SGD

15 data points across 8 retailers

15 retailers$1,685 SGD to $3,246 SGD

A
Cheapest Retailer
-
$1,685 SGD
Final sale: no returns
A
Retailer 2
-
$1,693 SGD
View
Retailer 3
-
$1,910 SGD
View
Price last confirmed 54 days ago
Retailer 4
-
$1,910 SGD
View
Price last confirmed 37 days ago
Retailer 5
-
$1,910 SGD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
$1,935 SGD
View
B+
Retailer 7
-
$1,939 SGD
View
Retailer 8
-
$1,998 SGD
View
Price last confirmed 37 days ago
B+
Retailer 9
-
$1,999 SGD
View
Retailer 10
-
$2,204 SGD
View
Price last confirmed 62 days ago
Retailer 11
-
$2,204 SGD
View
Price last confirmed 53 days ago
Retailer 12
-
$2,204 SGD
View
Price last confirmed 39 days ago
B
Retailer 13
-
$3,246 SGD
View
Retailer 14
-
$4,659 SGD
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
6f65f08b-1a75-4e65-a972-61815a910099 · Sep 18
$4,659 SGD
$3,635 USD
View
Price last confirmed 49 days ago
14 more retailers have this diamond
Prices start from $1,685 SGDSave up to $1,561 SGD

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
$1,685 SGD