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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 $1,771 AUD
As of November 4, 2026
Save $2,892 AUD (62%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,663 AUD 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 $1,771 to $4,663, a $2,892 spread on the same certified stone. NZ Jewellers lists it at $4,663. 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: $4,663 AUD|Low: $1,726 AUD|High: $4,663 AUD|Avg: $2,347 AUD|+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$1,771 AUD
Retailer 2$1,854 AUD
Retailer 9$1,912 AUD
Retailer 11$1,912 AUD
Retailer 10$2,000 AUD
Retailer 3$2,023 AUD
Retailer 12$2,074 AUD
Retailer 6$2,198 AUD
Retailer 4$2,206 AUD
Retailer 7$2,333 AUD
Retailer 5$2,452 AUD
Retailer 8$3,493 AUD
NZ Jewellers$4,663 AUD

31 data points across 13 retailers

12 retailers$1,771 AUD to $4,663 AUD

B+
Cheapest Retailer
-
$1,771 AUD
B+
Retailer 2
-
$1,854 AUD
View
B+
Retailer 3
-
$1,912 AUD
View
Retailer 4
-
$1,912 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$2,000 AUD
View
B+
Retailer 6
-
$2,023 AUD
View
B+
Retailer 7
-
$2,074 AUD
View
B+
Retailer 8
-
$2,198 AUD
View
B+
Retailer 9
-
$2,206 AUD
View
B
Retailer 10
-
$2,333 AUD
View
B
Retailer 11
-
$3,493 AUD
View
Most Expensive
C
NZ Jewellers
d45b50d3-fb9b-4f1a-91c6-4344749663fc · Nov 5
$4,663 AUD
$3,204 USD
View
11 more retailers have this diamond
Prices start from $1,771 AUDSave up to $2,892 AUD

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
$1,771 AUD