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Heart|Natural|GIA

1.20ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 3555609127

Certificate GIA 3555609127

Diamond specifications and retailer prices

From €1,319 EUR
As of November 6, 2026
Save €2,954 EUR (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €4,273 EUR 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555609127. Listed at 8 retailers as of November 5, 2026, with prices from €1,319 to €4,273, a €2,954 spread on the same certified stone. NZ Jewellers lists it at €4,273. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555609127
Dimensions6.53 × 7.35 × 4.27 mm
L/W Ratio1.13
Girdle conditionThick
Top View
6.53 mm7.35 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555609127
Side View
Table 58.0%CrownGirdle: MediumPavilionCulet: NoneDepth 58.1%

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: €4,273 EUR|Low: €1,319 EUR|High: €4,273 EUR|Avg: €2,276 EUR|+6.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2€1,319 EUR
Retailer 7€1,398 EUR
Retailer 6€1,583 EUR
Retailer 4€1,875 EUR
Retailer 5€1,902 EUR
Retailer 3€2,379 EUR
Retailer 8€3,060 EUR
NZ Jewellers€4,273 EUR

35 data points across 8 retailers

8 retailers€1,319 EUR to €4,273 EUR

A
Cheapest Retailer
-
€1,319 EUR
A
Retailer 2
-
€1,398 EUR
View
Final sale: no returns
A
Retailer 3
-
€1,583 EUR
View
B+
Retailer 4
-
€1,875 EUR
View
B+
Retailer 5
-
€1,902 EUR
View
B+
Retailer 6
-
€2,379 EUR
View
B
Retailer 7
-
€3,060 EUR
View
Most Expensive
C
NZ Jewellers
09864021-c292-4cb7-a6d4-cf127ea330cb · Nov 5
€4,273 EUR
$4,771 USD
View
7 more retailers have this diamond
Prices start from €1,319 EURSave up to €2,954 EUR

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
€1,319 EUR