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Heart|Natural|IGI

1.00ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 762534813

Shape and cutting style on the report: Heart brilliant

Certificate IGI 762534813

Diamond specifications and retailer prices

From $1,684 AUD
As of November 6, 2026
Save $1,698 AUD (50%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,654 AUD at NZ Jewellers · As of September 27, 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 762534813. Listed at 18 retailers as of November 4, 2026, with a 101% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle34.7°
Pavilion angle36.3°
OriginNatural
Grading LabIGI
CertificateIGI 762534813
Dimensions6.25 × 6.83 × 3.84 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
Top View
6.25 mm6.83 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 762534813
Side View
Table 59.0%Crown 34.7°Girdle: STK-VTKPavilion 36.3°Culet: NoneDepth 56.2%

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: $1,684 AUD|Low: $1,684 AUD|High: $3,531 AUD|Avg: $2,235 AUD|-4.4%
Retailer 1
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 1$1,684 AUD
Retailer 6$1,749 AUD
Retailer 7$1,770 AUD
Retailer 13$1,776 AUD
Retailer 5$1,908 AUD
Retailer 2$1,923 AUD
Retailer 4$1,927 AUD
Retailer 3$1,966 AUD
Retailer 9$2,020 AUD
Retailer 11$2,128 AUD
Retailer 10$2,260 AUD
Retailer 8$2,534 AUD
Retailer 12$3,382 AUD

33 data points across 13 retailers

18 retailers$1,684 AUD to $3,382 AUD

A
Cheapest Retailer
-
$1,684 AUD
Final sale: no returns
A
Retailer 2
-
$1,749 AUD
View
A
Retailer 3
-
$1,770 AUD
View
A
Retailer 4
-
$1,776 AUD
View
Retailer 5
-
$1,908 AUD
View
Price last confirmed 9 days ago
Retailer 6
-
$1,908 AUD
View
Price last confirmed 40 days ago
Retailer 7
-
$1,908 AUD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
$1,923 AUD
View
B+
Retailer 9
-
$1,927 AUD
View
B+
Retailer 10
-
$1,966 AUD
View
B+
Retailer 11
-
$2,020 AUD
View
A
Retailer 12
-
$2,128 AUD
View
Retailer 13
-
$2,202 AUD
View
Price last confirmed 62 days ago
Retailer 14
-
$2,202 AUD
View
Price last confirmed 40 days ago
A
Retailer 15
-
$2,260 AUD
View
B+
Retailer 16
-
$2,534 AUD
View
B
Retailer 17
-
$3,382 AUD
View
Most Expensive
NZ Jewellers
d5df0c3a-ce1d-4f4b-9aaa-f6de38ce5128 · Sep 27
$4,654 AUD
$3,198 USD
View
Price last confirmed 40 days ago
17 more retailers have this diamond
Prices start from $1,684 AUDSave up to $1,698 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