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Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6382112830

Certificate GIA 6382112830

Diamond specifications and retailer prices

From €2,104 EUR
As of November 6, 2026
Save €2,865 EUR (58%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €4,969 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6382112830. Listed at 20 retailers as of November 5, 2026, with prices from €2,104 to €4,969, a €2,865 spread on the same certified stone. NZ Jewellers lists it at €4,969. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6382112830
Dimensions6.70 × 7.12 × 4.18 mm
L/W Ratio1.06
Culet sizeNone
Top View
6.70 mm7.12 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6382112830
Side View
Table 56.0%CrownGirdle: VTN-ETKPavilionCulet: NoneDepth 58.7%

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: €2,333 EUR|Low: €2,296 EUR|High: €4,711 EUR|Avg: €3,112 EUR|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 1€2,333 EUR
Retailer 7€2,554 EUR
Retailer 2€2,700 EUR
Retailer 8€2,962 EUR
Retailer 6€3,058 EUR
Retailer 3€3,320 EUR
Retailer 4€3,481 EUR
Retailer 5€4,643 EUR

39 data points across 8 retailers

20 retailers€2,104 EUR to €4,969 EUR

B+
Cheapest Retailer
-
€2,104 EUR
B+
Retailer 2
-
€2,333 EUR
View
B+
Retailer 3
-
€2,351 EUR
View
B
Retailer 4
-
€2,435 EUR
View
B
Retailer 5
-
€2,481 EUR
View
B
Retailer 6
-
€2,481 EUR
View
B
Retailer 7
-
€2,554 EUR
View
B
Retailer 8
-
€2,562 EUR
View
B
Retailer 9
-
€2,700 EUR
View
B
Retailer 10
-
€2,768 EUR
View
B
Retailer 11
-
€2,853 EUR
View
Retailer 12
-
€2,853 EUR
View
Price last confirmed 9 days ago
B
Retailer 13
-
€2,962 EUR
View
B
Retailer 14
-
€2,980 EUR
View
Retailer 15
-
€3,058 EUR
View
Price last confirmed 34 days ago
B
Retailer 16
-
€3,291 EUR
View
B
Retailer 17
-
€3,320 EUR
View
B
Retailer 18
-
€3,481 EUR
View
B
Retailer 19
-
€4,643 EUR
View
Most Expensive
B
NZ Jewellers
08aad0d8-8048-47ea-b6a4-44e956ae65b9 · Nov 5
€4,969 EUR
$5,548 USD
View
19 more retailers have this diamond
Prices start from €2,104 EURSave up to €2,865 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.

B+
1.20ct Heart
€2,104 EUR