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Heart|Natural|GIA

1.00ct I SI2 Heart Natural Diamond

GD • I/SI2 • GIA 6435807278

Certificate GIA 6435807278

Diamond specifications and retailer prices

From $1,770 AUD
As of November 6, 2026
Save $4,042 AUD (70%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,811 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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6435807278. Listed at 18 retailers as of November 5, 2026, with prices from $1,770 to $5,811, a $4,042 spread on the same certified stone. NZ Jewellers lists it at $5,811. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6435807278
Dimensions6.83 × 5.51 × 3.99 mm
L/W Ratio1.24
Top View
6.83 mm5.51 mm1.00 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6435807278
Side View
Table 71.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 58.4%

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: $5,811 AUD|Low: $1,770 AUD|High: $5,811 AUD|Avg: $2,848 AUD
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 13$1,770 AUD
Retailer 8$1,866 AUD
Retailer 7$2,199 AUD
Retailer 4$2,350 AUD
Retailer 6$2,382 AUD
Retailer 15$2,382 AUD
Retailer 10$2,457 AUD
Retailer 2$2,460 AUD
Retailer 3$2,493 AUD
Retailer 14$2,580 AUD
Retailer 11$2,643 AUD
Retailer 5$2,749 AUD
Retailer 9$3,234 AUD
Retailer 12$4,162 AUD
NZ Jewellers$5,811 AUD

36 data points across 15 retailers

18 retailers$1,770 AUD to $5,811 AUD

B+
Cheapest Retailer
-
$1,770 AUD
A
Retailer 2
-
$1,866 AUD
View
B+
Retailer 3
-
$2,199 AUD
View
Final sale: no returns
B+
Retailer 4
-
$2,208 AUD
View
B+
Retailer 5
-
$2,350 AUD
View
Retailer 6
-
$2,382 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$2,382 AUD
View
B+
Retailer 8
-
$2,457 AUD
View
B+
Retailer 9
-
$2,460 AUD
View
B+
Retailer 10
-
$2,492 AUD
View
B+
Retailer 11
-
$2,493 AUD
View
B+
Retailer 12
-
$2,532 AUD
View
B+
Retailer 13
-
$2,580 AUD
View
B+
Retailer 14
-
$2,643 AUD
View
B+
Retailer 15
-
$2,749 AUD
View
B
Retailer 16
-
$3,234 AUD
View
B
Retailer 17
-
$4,162 AUD
View
Most Expensive
C
NZ Jewellers
1426f83e-0dc9-4c35-a7e8-399d9e5d8dbe · Nov 5
$5,811 AUD
$3,993 USD
View
17 more retailers have this diamond
Prices start from $1,770 AUDSave up to $4,042 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
$1,770 AUD