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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 $1,560 SGD
As of November 4, 2026
Save $2,547 SGD (62%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,106 SGD 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 $1,560 to $4,106, a $2,547 spread on the same certified stone. NZ Jewellers lists it at $4,106. 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: $4,106 SGD|Low: $1,520 SGD|High: $4,106 SGD|Avg: $2,066 SGD|+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$1,560 SGD
Retailer 2$1,633 SGD
Retailer 9$1,684 SGD
Retailer 11$1,684 SGD
Retailer 10$1,761 SGD
Retailer 3$1,781 SGD
Retailer 12$1,826 SGD
Retailer 6$1,935 SGD
Retailer 4$1,943 SGD
Retailer 7$2,054 SGD
Retailer 5$2,159 SGD
Retailer 8$3,076 SGD
NZ Jewellers$4,106 SGD

31 data points across 13 retailers

12 retailers$1,560 SGD to $4,106 SGD

B+
Cheapest Retailer
-
$1,560 SGD
B+
Retailer 2
-
$1,633 SGD
View
B+
Retailer 3
-
$1,684 SGD
View
Retailer 4
-
$1,684 SGD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,761 SGD
View
B+
Retailer 6
-
$1,781 SGD
View
B+
Retailer 7
-
$1,826 SGD
View
B+
Retailer 8
-
$1,935 SGD
View
B+
Retailer 9
-
$1,943 SGD
View
B
Retailer 10
-
$2,054 SGD
View
B
Retailer 11
-
$3,076 SGD
View
Most Expensive
C
NZ Jewellers
d45b50d3-fb9b-4f1a-91c6-4344749663fc · Nov 5
$4,106 SGD
$3,204 USD
View
11 more retailers have this diamond
Prices start from $1,560 SGDSave up to $2,547 SGD

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
$1,560 SGD