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Heart|Natural|IGI

1.00ct K SI1 Heart Natural Diamond

GD • K/SI1 • IGI 569314122

Shape and cutting style on the report: Heart brilliant

Certificate IGI 569314122

Diamond specifications and retailer prices

From €1,090 EUR
As of November 4, 2026
Save €1,780 EUR (62%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €2,870 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI 569314122. Listed at 12 retailers as of November 4, 2026, with prices from €1,090 to €2,870, a €1,780 spread on the same certified stone. NZ Jewellers lists it at €2,870. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
K
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.7°
Pavilion angle34.7°
OriginNatural
Grading LabIGI
CertificateIGI 569314122
Dimensions5.47 × 6.77 × 3.97 mm
L/W Ratio1.24
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown
Top View
5.47 mm6.77 mm1.00 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 569314122
Side View
Table 56.0%Crown 38.7°Girdle: VTK-ETKPavilion 34.7°Culet: NoneDepth 58.6%

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: €2,870 EUR|Low: €1,062 EUR|High: €2,870 EUR|Avg: €1,444 EUR|+6.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 13€1,090 EUR
Retailer 2€1,141 EUR
Retailer 9€1,177 EUR
Retailer 11€1,177 EUR
Retailer 10€1,231 EUR
Retailer 3€1,245 EUR
Retailer 12€1,276 EUR
Retailer 6€1,352 EUR
Retailer 4€1,358 EUR
Retailer 7€1,436 EUR
Retailer 5€1,509 EUR
Retailer 8€2,150 EUR
NZ Jewellers€2,870 EUR

31 data points across 13 retailers

12 retailers€1,090 EUR to €2,870 EUR

B+
Cheapest Retailer
-
€1,090 EUR
B+
Retailer 2
-
€1,141 EUR
View
B+
Retailer 3
-
€1,177 EUR
View
Retailer 4
-
€1,177 EUR
View
Price last confirmed 8 days ago
B+
Retailer 5
-
€1,231 EUR
View
B+
Retailer 6
-
€1,245 EUR
View
B+
Retailer 7
-
€1,276 EUR
View
B+
Retailer 8
-
€1,352 EUR
View
B+
Retailer 9
-
€1,358 EUR
View
B
Retailer 10
-
€1,436 EUR
View
B
Retailer 11
-
€2,150 EUR
View
Most Expensive
C
NZ Jewellers
d45b50d3-fb9b-4f1a-91c6-4344749663fc · Nov 5
€2,870 EUR
$3,204 USD
View
11 more retailers have this diamond
Prices start from €1,090 EURSave up to €1,780 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+
1.00ct Heart
€1,090 EUR