Heart|Natural|GIA

1.20ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 1443376340

Certificate GIA 1443376340

Diamond specifications and retailer prices

From €2,575 EUR
As of November 2, 2026
13 retailers carry this diamond
Most expensive: €5,064 EUR at NZ Jewellers · As of September 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 I 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 1443376340. Listed at 13 retailers as of November 2, 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1443376340
Dimensions6.42 × 7.55 × 4.36 mm
L/W Ratio1.18
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Natural
Top View
6.42 mm7.55 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1443376340
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.8%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €2,539 EUR|Low: €2,044 EUR|High: €4,295 EUR|Avg: €2,663 EUR|+2.0%
Retailer 1
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
Retailer 15
October 20, 2026
Retailer 4€2,044 EUR
Retailer 2€2,169 EUR
Retailer 12€2,385 EUR
Retailer 15€2,422 EUR
Retailer 1€2,539 EUR
Retailer 14€2,548 EUR
Retailer 7€2,575 EUR
Retailer 3€2,603 EUR
Retailer 6€2,603 EUR
Retailer 5€2,693 EUR
Retailer 11€2,714 EUR
Retailer 13€2,832 EUR
Retailer 8€2,924 EUR
Retailer 10€2,940 EUR
Retailer 9€4,267 EUR

28 data points across 15 retailers

13 retailers

Retailer 1
-
€2,169 EUR
$2,433 USD
Price last confirmed 13 days ago
Retailer 2
-
€2,385 EUR
$2,675 USD
View
Price last confirmed 13 days ago
Retailer 3
-
€2,422 EUR
$2,717 USD
View
Price last confirmed 25 days ago
Retailer 4
-
€2,515 EUR
$2,821 USD
View
Price last confirmed 32 days ago
Retailer 5
-
€2,539 EUR
£2,242 GBP
View
Price last confirmed 13 days ago
Retailer 6
-
€2,548 EUR
$2,858 USD
View
Price last confirmed 15 days ago
B
Retailer 7
-
€2,575 EUR
View
Retailer 8
-
€2,714 EUR
A$4,683 AUD
View
Price last confirmed 25 days ago
Retailer 9
-
€2,795 EUR
$3,135 USD
View
Price last confirmed 24 days ago
Retailer 10
-
€2,832 EUR
$3,176 USD
View
Price last confirmed 13 days ago
Retailer 11
-
€2,940 EUR
ZAR 53,274 ZAR
View
Price last confirmed 16 days ago
Retailer 12
-
€4,267 EUR
£3,768 GBP
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
bbd29a78-304e-44f7-8eb2-e3776e7f2961 · Sep 30
€5,064 EUR
$5,680 USD
View
Price last confirmed 33 days ago
12 more retailers have this diamond
Prices start from €2,575 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
€2,575 EUR