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Heart|Natural|GIA

1.06ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 1383855506

Certificate GIA 1383855506

Diamond specifications and retailer prices

From €1,698 EUR
As of November 4, 2026
Save €969 EUR (36%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €3,761 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 1.06ct natural heart diamond

This 1.06ct 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 1383855506. Listed at 15 retailers as of November 3, 2026, with a 57% 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

1.06
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1383855506
Dimensions5.86 × 5.68 × 3.91 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeNone
Cert comments
Inscription(s): GIA 1383855506
Top View
5.86 mm5.68 mm1.06 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1383855506
Side View
Table 65.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 68.8%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: €3,761 EUR|Low: €1,543 EUR|High: €3,802 EUR|Avg: €2,264 EUR|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 3€1,698 EUR
Retailer 6€1,755 EUR
Retailer 8€1,793 EUR
Retailer 7€1,802 EUR
Retailer 10€1,874 EUR
Retailer 11€1,943 EUR
Retailer 2€2,269 EUR
Retailer 5€2,635 EUR
Retailer 9€2,640 EUR
Retailer 4€2,667 EUR
MOH London€3,761 EUR

43 data points across 11 retailers

15 retailers€1,698 EUR to €2,667 EUR

B+
Cheapest Retailer
-
€1,698 EUR
B+
Retailer 2
-
€1,753 EUR
View
B+
Retailer 3
-
€1,755 EUR
View
B+
Retailer 4
-
€1,793 EUR
View
Final sale: no returns
Retailer 5
-
€1,802 EUR
View
Price last confirmed 17 days ago
B+
Retailer 6
-
€1,829 EUR
View
B
Retailer 7
-
€1,874 EUR
View
B
Retailer 8
-
€1,943 EUR
View
B
Retailer 9
-
€1,957 EUR
View
B
Retailer 10
-
€2,119 EUR
View
B
Retailer 11
-
€2,269 EUR
View
B
Retailer 12
-
€2,635 EUR
View
Retailer 13
-
€2,640 EUR
View
Price last confirmed 29 days ago
B
Retailer 14
-
€2,667 EUR
View
Most Expensive
MOH London
30E99A5A2 · Oct 26
€3,761 EUR
£3,337 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from €1,698 EURSave up to €969 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+
1.06ct Heart
€1,698 EUR