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Heart|Natural|GIA

1.01ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 6545375595

Certificate GIA 6545375595

Diamond specifications and retailer prices

From €1,077 EUR
As of November 6, 2026
Save €1,484 EUR (58%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €3,890 EUR at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.01ct natural heart diamond

This 1.01ct 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 6545375595. Listed at 20 retailers as of November 2, 2026, with a 138% 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

1.01
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle39.9°
OriginNatural
Grading LabGIA
CertificateGIA 6545375595
Dimensions6.28 × 7.08 × 3.95 mm
L/W Ratio1.13
Top View
6.28 mm7.08 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545375595
Side View
Table 59.0%CrownGirdle: MED-VTKPavilion 39.9°Culet: NoneDepth 55.7%

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: €1,149 EUR|Low: €1,077 EUR|High: €2,670 EUR|Avg: €1,577 EUR|-8.7%
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
November 6, 2026
Retailer 12€1,077 EUR
Retailer 1€1,149 EUR
Retailer 13€1,268 EUR
Retailer 4€1,271 EUR
Retailer 8€1,272 EUR
Retailer 6€1,290 EUR
Retailer 10€1,299 EUR
Retailer 3€1,341 EUR
Retailer 7€1,430 EUR
Retailer 11€1,506 EUR
Retailer 14€1,517 EUR
Retailer 15€1,772 EUR
Retailer 2€1,784 EUR
Retailer 9€2,197 EUR
Retailer 5€2,562 EUR

24 data points across 15 retailers

20 retailers€1,077 EUR to €2,562 EUR

A
Cheapest Retailer
-
€1,077 EUR
A
Retailer 2
-
€1,149 EUR
View
Final sale: no returns
A
Retailer 3
-
€1,268 EUR
View
A
Retailer 4
-
€1,271 EUR
View
A
Retailer 5
-
€1,272 EUR
View
A
Retailer 6
-
€1,290 EUR
View
A
Retailer 7
-
€1,299 EUR
View
A
Retailer 8
-
€1,341 EUR
View
A
Retailer 9
-
€1,430 EUR
View
A
Retailer 10
-
€1,506 EUR
View
A
Retailer 11
-
€1,517 EUR
View
Retailer 12
-
€1,627 EUR
View
Price last confirmed 17 days ago
Retailer 13
-
€1,747 EUR
View
Price last confirmed 45 days ago
B+
Retailer 14
-
€1,772 EUR
View
B+
Retailer 15
-
€1,784 EUR
View
B+
Retailer 16
-
€1,798 EUR
View
Retailer 17
-
€2,009 EUR
View
Price last confirmed 33 days ago
B+
Retailer 18
-
€2,197 EUR
View
B
Retailer 19
-
€2,562 EUR
View
Most Expensive
NZ Jewellers
c4d5302c-22d0-40c6-96c6-d9cefc8b3055 · Sep 25
€3,890 EUR
$4,343 USD
View
Price last confirmed 42 days ago
19 more retailers have this diamond
Prices start from €1,077 EURSave up to €1,484 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
1.01ct Heart
€1,077 EUR