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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 $2,566 USD
As of November 6, 2026
Save $3,257 USD (56%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $5,823 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 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 $2,566 to $5,823, a $3,257 spread on the same certified stone. NZ Jewellers lists it at $5,823. 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
Color
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: $2,566 USD|Low: $2,566 USD|High: $5,648 USD|Avg: $3,560 USD|-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$2,566 USD
Retailer 9$2,572 USD
Retailer 7$2,940 USD
Retailer 10$3,191 USD
Retailer 3$3,242 USD
Retailer 5$3,458 USD
Retailer 4$3,577 USD
Retailer 2$3,852 USD
Retailer 6$4,079 USD
Retailer 8$5,574 USD

25 data points across 10 retailers

23 retailers$2,566 USD to $5,823 USD

B+
Cheapest Retailer
-
$2,566 USD
B+
Retailer 2
-
$2,572 USD
View
B
Retailer 3
-
$2,867 USD
View
B+
Retailer 4
-
$2,940 USD
View
B
Retailer 5
-
$2,967 USD
View
B
Retailer 6
-
$3,084 USD
View
Final sale: no returns
B
Retailer 7
-
$3,191 USD
View
B
Retailer 8
-
$3,230 USD
View
B
Retailer 9
-
$3,242 USD
View
B
Retailer 10
-
$3,342 USD
View
Retailer 11
-
$3,342 USD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$3,458 USD
View
B
Retailer 13
-
$3,471 USD
View
B
Retailer 14
-
$3,486 USD
View
Retailer 15
-
$3,570 USD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$3,576 USD
View
B
Retailer 17
-
$3,577 USD
View
B
Retailer 18
-
$3,694 USD
View
B
Retailer 19
-
$3,856 USD
View
B
Retailer 20
-
$4,079 USD
View
B
Retailer 21
-
$4,976 USD
View
B
Retailer 22
-
$5,574 USD
View
Most Expensive
B
NZ Jewellers
64a0fccb-8343-41c4-9706-32672873e768 · Nov 5
$5,823 USD
View
22 more retailers have this diamond
Prices start from $2,566 USDSave up to $3,257 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.

B+
1.20ct Heart
$2,566 USD