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Heart|Natural|GIA

1.00ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 6522265318

Certificate GIA 6522265318

Diamond specifications and retailer prices

From $2,020 AUD
As of November 5, 2026
Save $4,349 AUD (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,455 AUD at NZ Jewellers · As of September 28, 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 stated by the retailer rather than the lab and certified by GIA 6522265318. Listed at 19 retailers as of November 5, 2026, with a 215% 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 (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle42.8°
OriginNatural
Grading LabGIA
CertificateGIA 6522265318
Dimensions6.79 × 6.15 × 3.81 mm
L/W Ratio1.10
Top View
6.79 mm6.15 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6522265318
Side View
Table 59.0%Crown 37.5°Girdle: STK-VTKPavilion 42.8°Culet: NoneDepth 62.0%

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 5
Current: $6,369 AUD|Low: $2,010 AUD|High: $6,455 AUD|Avg: $3,136 AUD|-1.3%
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 8$2,020 AUD
Retailer 6$2,145 AUD
Retailer 12$2,378 AUD
Retailer 5$2,611 AUD
Retailer 14$2,611 AUD
Retailer 13$2,700 AUD
Retailer 11$2,732 AUD
Retailer 4$2,736 AUD
Retailer 3$2,810 AUD
Retailer 2$2,898 AUD
Retailer 15$3,013 AUD
Retailer 9$3,187 AUD
Retailer 7$3,452 AUD
Retailer 10$4,563 AUD
NZ Jewellers$6,369 AUD

44 data points across 15 retailers

19 retailers$2,020 AUD to $6,369 AUD

A
Cheapest Retailer
-
$2,020 AUD
A
Retailer 2
-
$2,145 AUD
View
B+
Retailer 3
-
$2,378 AUD
View
B+
Retailer 4
-
$2,611 AUD
View
Retailer 5
-
$2,611 AUD
View
Price last confirmed 9 days ago
Retailer 6
-
$2,646 AUD
View
Price last confirmed 40 days ago
B+
Retailer 7
-
$2,700 AUD
View
B+
Retailer 8
-
$2,732 AUD
View
B+
Retailer 9
-
$2,736 AUD
View
B+
Retailer 10
-
$2,810 AUD
View
B+
Retailer 11
-
$2,898 AUD
View
B+
Retailer 12
-
$3,013 AUD
View
Retailer 13
-
$3,053 AUD
View
Price last confirmed 62 days ago
Retailer 14
-
$3,053 AUD
View
Price last confirmed 39 days ago
B+
Retailer 15
-
$3,187 AUD
View
Retailer 16
-
$3,452 AUD
View
Price last confirmed 33 days ago
B
Retailer 17
-
$4,563 AUD
View
C
Retailer 18
-
$6,369 AUD
View
Most Expensive
NZ Jewellers
295baa47-2489-4cda-a849-a079166ab15b · Sep 28
$6,455 AUD
$4,435 USD
View
Price last confirmed 39 days ago
18 more retailers have this diamond
Prices start from $2,020 AUDSave up to $4,349 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
$2,020 AUD