Heart|Natural|GIA

1.20ct F SI1 Heart Natural Diamond

ID • F/SI1 • GIA 25

Certificate GIA 25

Diamond specifications and retailer prices

From €2,966 EUR
As of November 6, 2026
Save €1,136 EUR (28%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: €6,837 EUR at NZ Jewellers · As of October 30, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 29 retailers as of November 5, 2026, with a 38% 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

1.20
Carat
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 25
Dimensions6.41 × 7.56 × 4.14 mm
L/W Ratio1.18
Top View
6.41 mm7.56 mm1.20 ctF / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 25
Side View
Table 62.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 54.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €6,837 EUR|Low: €2,966 EUR|High: €6,837 EUR|Avg: €3,926 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7€2,966 EUR
Retailer 8€3,017 EUR
Retailer 4€3,555 EUR
Retailer 5€3,555 EUR
Retailer 6€3,555 EUR
Retailer 2€3,807 EUR
Retailer 3€4,102 EUR
NZ Jewellers€6,837 EUR

24 data points across 8 retailers

29 retailers€2,966 EUR to €4,102 EUR

B+
Cheapest Retailer
-
€2,966 EUR
B+
Retailer 2
-
€3,017 EUR
View
Retailer 3
-
€3,555 EUR
View
Price last confirmed 9 days ago
B
Retailer 4
-
€3,555 EUR
View
Retailer 5
-
€3,555 EUR
View
Price last confirmed 14 days ago
Retailer 6
-
€3,555 EUR
View
Price last confirmed 9 days ago
Retailer 7
-
€3,555 EUR
View
Price last confirmed 22 days ago
Retailer 8
-
€3,555 EUR
View
Price last confirmed 12 days ago
Retailer 9
-
€3,555 EUR
View
Price last confirmed 9 days ago
Retailer 10
-
€3,555 EUR
View
Price last confirmed 43 days ago
Retailer 11
-
€3,555 EUR
View
Price last confirmed 16 days ago
B
Retailer 12
-
€3,555 EUR
View
Retailer 13
-
€3,555 EUR
View
Price last confirmed 31 days ago
B
Retailer 14
-
€3,807 EUR
View
Retailer 15
-
€4,102 EUR
View
Price last confirmed 15 days ago
B
Retailer 16
-
€4,102 EUR
View
Retailer 17
-
€4,102 EUR
View
Price last confirmed 11 days ago
Retailer 18
-
€4,102 EUR
View
Price last confirmed 57 days ago
Retailer 19
-
€4,102 EUR
View
Price last confirmed 44 days ago
Retailer 20
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€4,102 EUR
View
Price last confirmed 31 days ago
B
Retailer 21
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€4,102 EUR
View
Retailer 22
-
€4,102 EUR
View
Price last confirmed 22 days ago
Retailer 23
-
€4,102 EUR
View
Price last confirmed 24 days ago
Retailer 24
-
€6,837 EUR
View
Price last confirmed 32 days ago
Retailer 25
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€6,837 EUR
View
Price last confirmed 43 days ago
Retailer 26
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€6,837 EUR
View
Price last confirmed 14 days ago
Retailer 27
-
€6,837 EUR
View
Price last confirmed 11 days ago
Retailer 28
-
€6,837 EUR
View
Price last confirmed 24 days ago
Most Expensive
NZ Jewellers
7a147ca9-5ff2-4c41-bc9c-94cc60f8a822 · Oct 30
€6,837 EUR
$7,633 USD
View
Price last confirmed 7 days ago
28 more retailers have this diamond
Prices start from €2,966 EURSave up to €1,136 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
€2,966 EUR