Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6541235789

Certificate GIA 6541235789

Diamond specifications and retailer prices

From €1,721 EUR
As of November 7, 2026
13 retailers carry this diamond
Most expensive: €3,840 EUR at NZ Jewellers · As of October 24, 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 6541235789. Listed at 13 retailers as of November 7, 2026. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6541235789
Dimensions6.77 × 7.26 × 4.24 mm
L/W Ratio1.07
Top View
6.77 mm7.26 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6541235789
Side View
Table 57.0%CrownGirdle: THN-XTKPavilionCulet: NoneDepth 58.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 7
Current: €3,840 EUR|Low: €1,169 EUR|High: €3,977 EUR|Avg: €1,850 EUR|-3.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 24, 2026
Retailer 9€1,169 EUR
Retailer 2€1,196 EUR
Retailer 14€1,454 EUR
Retailer 7€1,537 EUR
Retailer 10€1,575 EUR
Retailer 3€1,598 EUR
Retailer 13€1,630 EUR
Retailer 12€1,639 EUR
Retailer 8€1,647 EUR
Retailer 11€1,730 EUR
Retailer 4€1,816 EUR
Retailer 6€2,176 EUR
Retailer 5€2,806 EUR
NZ Jewellers€3,840 EUR

26 data points across 14 retailers

13 retailers

Retailer 1
-
€1,169 EUR
Price last confirmed 13 days ago
Retailer 2
-
€1,196 EUR
View
Price last confirmed 14 days ago
Retailer 3
-
€1,575 EUR
View
Price last confirmed 16 days ago
Retailer 4
-
€1,598 EUR
View
Price last confirmed 14 days ago
Retailer 5
-
€1,630 EUR
View
Price last confirmed 15 days ago
Retailer 6
-
€1,639 EUR
View
Price last confirmed 15 days ago
Retailer 7
-
€1,647 EUR
View
Price last confirmed 16 days ago
B+
Retailer 8
-
€1,721 EUR
View
Retailer 9
-
€1,730 EUR
View
Price last confirmed 14 days ago
Retailer 10
-
€1,816 EUR
View
Price last confirmed 15 days ago
Retailer 11
-
€2,176 EUR
View
Price last confirmed 33 days ago
Retailer 12
-
€2,806 EUR
View
Price last confirmed 19 days ago
Most Expensive
NZ Jewellers
f1a2d860-d537-431d-b040-66519a43dec2 · Oct 24
€3,840 EUR
$4,287 USD
View
Price last confirmed 13 days ago
12 more retailers have this diamond
Prices start from €1,721 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
€1,721 EUR