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Heart|Natural|GIA

1.00ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 2546210579

Certificate GIA 2546210579

Diamond specifications and retailer prices

From $2,390 AUD
As of November 6, 2026
Save $5,939 AUD (71%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,329 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546210579. Listed at 17 retailers as of November 5, 2026, with prices from $2,390 to $8,329, a $5,939 spread on the same certified stone. NZ Jewellers lists it at $8,329. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2546210579
Dimensions6.28 × 6.69 × 3.85 mm
L/W Ratio1.07
Top View
6.28 mm6.69 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 2546210579
Side View
Table 58.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 57.5%

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: $8,329 AUD|Low: $2,390 AUD|High: $8,329 AUD|Avg: $4,660 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$2,390 AUD
Retailer 4$3,864 AUD
Retailer 9$3,983 AUD
Retailer 11$3,983 AUD
Retailer 3$4,136 AUD
Retailer 6$4,216 AUD
Retailer 10$4,596 AUD
Retailer 5$4,635 AUD
Retailer 7$4,862 AUD
Retailer 8$6,960 AUD
NZ Jewellers$8,329 AUD

26 data points across 11 retailers

17 retailers$2,390 AUD to $8,329 AUD

A
Cheapest Retailer
-
$2,390 AUD
B
Retailer 2
-
$3,569 AUD
View
B
Retailer 3
-
$3,676 AUD
View
Final sale: no returns
B
Retailer 4
-
$3,775 AUD
View
B
Retailer 5
-
$3,864 AUD
View
B
Retailer 6
-
$3,915 AUD
View
B
Retailer 7
-
$3,983 AUD
View
Retailer 8
-
$3,983 AUD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$4,136 AUD
View
B
Retailer 10
-
$4,136 AUD
View
B
Retailer 11
-
$4,216 AUD
View
Retailer 12
-
$4,462 AUD
View
Price last confirmed 31 days ago
B
Retailer 13
-
$4,596 AUD
View
B
Retailer 14
-
$4,635 AUD
View
B
Retailer 15
-
$4,862 AUD
View
B
Retailer 16
-
$6,960 AUD
View
Most Expensive
C
NZ Jewellers
82ca3768-f550-4974-89f0-ed29e731af53 · Nov 5
$8,329 AUD
$5,723 USD
View
16 more retailers have this diamond
Prices start from $2,390 AUDSave up to $5,939 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
$2,390 AUD