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Heart|Natural|IGI

1.00ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 762534753

Shape and cutting style on the report: Heart brilliant

Certificate IGI 762534753

Diamond specifications and retailer prices

From $1,684 AUD
As of November 4, 2026
Save $2,767 AUD (62%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,451 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 762534753. Listed at 15 retailers as of November 4, 2026, with prices from $1,684 to $4,451, a $2,767 spread on the same certified stone. NZ Jewellers lists it at $4,451. 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
FluorescenceFaint
Crown angle35.5°
Pavilion angle42.2°
OriginNatural
Grading LabIGI
CertificateIGI 762534753
Dimensions5.82 × 6.85 × 4.27 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Top View
5.82 mm6.85 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 762534753
Side View
Table 59.0%Crown 35.5°Girdle: STK-THKPavilion 42.2°Culet: NoneDepth 62.3%

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 4
Current: $4,451 AUD|Low: $1,684 AUD|High: $4,585 AUD|Avg: $2,300 AUD|-2.9%
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 6$1,684 AUD
Retailer 4$1,746 AUD
Retailer 14$1,746 AUD
Retailer 2$1,770 AUD
Retailer 11$1,825 AUD
Retailer 7$1,879 AUD
Retailer 12$1,895 AUD
Retailer 3$1,898 AUD
Retailer 15$1,942 AUD
Retailer 13$2,020 AUD
Retailer 9$2,096 AUD
Retailer 5$2,105 AUD
Retailer 8$2,227 AUD
Retailer 10$3,331 AUD
NZ Jewellers$4,451 AUD

38 data points across 15 retailers

15 retailers$1,684 AUD to $4,451 AUD

A
Cheapest Retailer
-
$1,684 AUD
Final sale: no returns
A
Retailer 2
-
$1,746 AUD
View
A
Retailer 3
-
$1,746 AUD
View
A
Retailer 4
-
$1,770 AUD
View
A
Retailer 5
-
$1,825 AUD
View
Retailer 6
-
$1,879 AUD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$1,895 AUD
View
B+
Retailer 8
-
$1,898 AUD
View
A
Retailer 9
-
$1,942 AUD
View
B+
Retailer 10
-
$2,020 AUD
View
A
Retailer 11
-
$2,096 AUD
View
A
Retailer 12
-
$2,105 AUD
View
A
Retailer 13
-
$2,227 AUD
View
B
Retailer 14
-
$3,331 AUD
View
Most Expensive
B
NZ Jewellers
ee8beb01-7cd9-4a4e-980b-a75e2751408b · Nov 5
$4,451 AUD
$3,058 USD
View
14 more retailers have this diamond
Prices start from $1,684 AUDSave up to $2,767 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.

A
1.00ct Heart
$1,684 AUD