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Heart|Natural|IGI

1.00ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 671474661

Shape and cutting style on the report: Heart brilliant

Certificate IGI 671474661

Diamond specifications and retailer prices

From $2,543 NZD
As of November 6, 2026
Save $4,181 NZD (62%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,725 NZD 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 671474661. Listed at 17 retailers as of November 5, 2026, with prices from $2,543 to $6,725, a $4,181 spread on the same certified stone. NZ Jewellers lists it at $6,725. 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
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle39.5°
OriginNatural
Grading LabIGI
CertificateIGI 671474661
Dimensions6.32 × 6.95 × 3.98 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Top View
6.32 mm6.95 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 671474661
Side View
Table 61.0%Crown 39.5°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 57.3%

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: $6,725 NZD|Low: $2,406 NZD|High: $6,725 NZD|Avg: $3,283 NZD
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
Retailer 14
Retailer 15
November 6, 2026
Retailer 15$2,543 NZD
Retailer 4$2,554 NZD
Retailer 3$2,747 NZD
Retailer 7$2,756 NZD
Retailer 12$2,756 NZD
Retailer 13$2,879 NZD
Retailer 14$2,884 NZD
Retailer 11$2,913 NZD
Retailer 6$3,002 NZD
Retailer 8$3,097 NZD
Retailer 5$3,180 NZD
Retailer 9$3,364 NZD
Retailer 2$3,563 NZD
Retailer 10$4,816 NZD
NZ Jewellers$6,725 NZD

41 data points across 15 retailers

17 retailers$2,543 NZD to $6,725 NZD

A
Cheapest Retailer
-
$2,543 NZD
Final sale: no returns
A
Retailer 2
-
$2,554 NZD
View
A
Retailer 3
-
$2,747 NZD
View
Retailer 4
-
$2,756 NZD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$2,756 NZD
View
Retailer 6
-
$2,845 NZD
View
Price last confirmed 54 days ago
A
Retailer 7
-
$2,879 NZD
View
A
Retailer 8
-
$2,884 NZD
View
B+
Retailer 9
-
$2,913 NZD
View
B+
Retailer 10
-
$3,002 NZD
View
B+
Retailer 11
-
$3,097 NZD
View
B+
Retailer 12
-
$3,180 NZD
View
Retailer 13
-
$3,281 NZD
View
Price last confirmed 62 days ago
B+
Retailer 14
-
$3,364 NZD
View
B+
Retailer 15
-
$3,563 NZD
View
B
Retailer 16
-
$4,816 NZD
View
Most Expensive
B
NZ Jewellers
670029f6-c686-4e30-8ea0-6695fb5a2655 · Nov 5
$6,725 NZD
$3,728 USD
View
16 more retailers have this diamond
Prices start from $2,543 NZDSave up to $4,181 NZD

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
1.00ct Heart
$2,543 NZD