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Heart|Natural|GIA

1.21ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 6545536297

Certificate GIA 6545536297

Diamond specifications and retailer prices

From €1,455 EUR
As of November 6, 2026
Save €1,903 EUR (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €4,040 EUR at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct 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 6545536297. Listed at 13 retailers as of November 4, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.21
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6545536297
Dimensions6.60 × 7.43 × 4.32 mm
L/W Ratio1.13
Top View
6.60 mm7.43 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6545536297
Side View
Table 56.0%CrownGirdle: MED-THKPavilionCulet: 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: €4,040 EUR|Low: €1,455 EUR|High: €4,040 EUR|Avg: €2,231 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7€1,455 EUR
Retailer 2€1,522 EUR
Retailer 9€1,933 EUR
Retailer 10€1,933 EUR
Retailer 6€2,015 EUR
Retailer 3€2,026 EUR
Retailer 4€2,089 EUR
Retailer 8€2,230 EUR
Retailer 5€3,359 EUR
NZ Jewellers€4,040 EUR

42 data points across 10 retailers

13 retailers€1,455 EUR to €3,359 EUR

A
Cheapest Retailer
-
€1,455 EUR
A
Retailer 2
-
€1,522 EUR
View
B+
Retailer 3
-
€1,839 EUR
View
Retailer 4
-
€1,933 EUR
View
Price last confirmed 21 days ago
Retailer 5
-
€1,933 EUR
View
Price last confirmed 19 days ago
B+
Retailer 6
-
€1,984 EUR
View
B+
Retailer 7
-
€2,015 EUR
View
Retailer 8
-
€2,022 EUR
View
Price last confirmed 21 days ago
B+
Retailer 9
-
€2,026 EUR
View
B+
Retailer 10
-
€2,089 EUR
View
Retailer 11
-
€2,230 EUR
View
Price last confirmed 18 days ago
B
Retailer 12
-
€3,359 EUR
View
Most Expensive
NZ Jewellers
fa3577ee-5542-49c3-a737-58f41377a77e · Oct 18
€4,040 EUR
$4,511 USD
View
Price last confirmed 19 days ago
12 more retailers have this diamond
Prices start from €1,455 EURSave up to €1,903 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
1.21ct Heart
€1,455 EUR