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Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

ID • J/SI1 • GIA 2556719376

Certificate GIA 2556719376

Diamond specifications and retailer prices

From $3,289 SGD
As of November 6, 2026
Save $4,174 SGD (56%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,463 SGD 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556719376. Listed at 23 retailers as of November 5, 2026, with prices from $3,289 to $7,463, a $4,174 spread on the same certified stone. NZ Jewellers lists it at $7,463. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle39.38°
Pavilion angle38.46°
OriginNatural
Grading LabGIA
CertificateGIA 2556719376
Dimensions6.34 × 7.24 × 4.30 mm
L/W Ratio1.14
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.34 mm7.24 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556719376
Side View
Table 61.0%Crown 39.38°Girdle: STK-VTKPavilion 38.46°Culet: NoneDepth 59.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,289 SGD|Low: $3,289 SGD|High: $7,238 SGD|Avg: $4,562 SGD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1$3,289 SGD
Retailer 9$3,296 SGD
Retailer 7$3,768 SGD
Retailer 10$4,090 SGD
Retailer 3$4,155 SGD
Retailer 5$4,432 SGD
Retailer 4$4,584 SGD
Retailer 2$4,937 SGD
Retailer 6$5,228 SGD
Retailer 8$7,144 SGD

25 data points across 10 retailers

23 retailers$3,289 SGD to $7,463 SGD

B+
Cheapest Retailer
-
$3,289 SGD
B+
Retailer 2
-
$3,296 SGD
View
B
Retailer 3
-
$3,674 SGD
View
B+
Retailer 4
-
$3,768 SGD
View
B
Retailer 5
-
$3,803 SGD
View
B
Retailer 6
-
$3,952 SGD
View
Final sale: no returns
B
Retailer 7
-
$4,090 SGD
View
B
Retailer 8
-
$4,140 SGD
View
B
Retailer 9
-
$4,155 SGD
View
B
Retailer 10
-
$4,283 SGD
View
Retailer 11
-
$4,283 SGD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$4,432 SGD
View
B
Retailer 13
-
$4,448 SGD
View
B
Retailer 14
-
$4,468 SGD
View
Retailer 15
-
$4,575 SGD
View
Price last confirmed 31 days ago
B
Retailer 16
-
$4,583 SGD
View
B
Retailer 17
-
$4,584 SGD
View
B
Retailer 18
-
$4,734 SGD
View
B
Retailer 19
-
$4,942 SGD
View
B
Retailer 20
-
$5,228 SGD
View
B
Retailer 21
-
$6,377 SGD
View
B
Retailer 22
-
$7,144 SGD
View
Most Expensive
B
NZ Jewellers
64a0fccb-8343-41c4-9706-32672873e768 · Nov 5
$7,463 SGD
$5,823 USD
View
22 more retailers have this diamond
Prices start from $3,289 SGDSave up to $4,174 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.

B+
1.20ct Heart
$3,289 SGD