CaratHunter
Plans
Heart|Natural|GIA

1.20ct J SI2 Heart Natural Diamond

ID • J/SI2 • GIA 1539286592

Certificate GIA 1539286592

Diamond specifications and retailer prices

From €1,272 EUR
As of November 6, 2026
Save €1,662 EUR (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €4,086 EUR at NZ Jewellers · As of October 18, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1539286592. Listed at 15 retailers as of November 1, 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

1.20
Carat
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1539286592
Dimensions7.36 × 6.60 × 4.26 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Crystal, Cavity, Needle, Indented Natural
Top View
7.36 mm6.60 mm1.20 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1539286592
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €4,086 EUR|Low: €1,272 EUR|High: €4,128 EUR|Avg: €1,986 EUR|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8€1,272 EUR
Retailer 2€1,335 EUR
Retailer 10€1,537 EUR
Retailer 6€1,589 EUR
Retailer 3€1,675 EUR
Retailer 7€1,738 EUR
Retailer 12€1,753 EUR
Retailer 9€1,788 EUR
Retailer 5€1,808 EUR
Retailer 4€1,933 EUR
Retailer 11€2,934 EUR
NZ Jewellers€4,086 EUR

35 data points across 12 retailers

15 retailers€1,272 EUR to €2,934 EUR

A
Cheapest Retailer
-
€1,272 EUR
A
Retailer 2
-
€1,335 EUR
View
A
Retailer 3
-
€1,537 EUR
View
Final sale: no returns
A
Retailer 4
-
€1,589 EUR
View
B+
Retailer 5
-
€1,609 EUR
View
Retailer 6
-
€1,675 EUR
View
Price last confirmed 21 days ago
Retailer 7
-
€1,675 EUR
View
Price last confirmed 19 days ago
B+
Retailer 8
-
€1,738 EUR
View
Retailer 9
-
€1,753 EUR
View
Price last confirmed 21 days ago
B+
Retailer 10
-
€1,763 EUR
View
B+
Retailer 11
-
€1,788 EUR
View
B+
Retailer 12
-
€1,808 EUR
View
Retailer 13
-
€1,933 EUR
View
Price last confirmed 18 days ago
B
Retailer 14
-
€2,934 EUR
View
Most Expensive
NZ Jewellers
258dd2b5-1842-4f77-85bb-64125eaa28cf · Oct 18
€4,086 EUR
$4,562 USD
View
Price last confirmed 19 days ago
14 more retailers have this diamond
Prices start from €1,272 EURSave up to €1,662 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
1.20ct Heart
€1,272 EUR