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Heart|Natural|GIA

1.01ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 2426187670

Certificate GIA 2426187670

Diamond specifications and retailer prices

From $1,838 AUD
As of November 6, 2026
Save $4,497 AUD (71%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,335 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.01ct natural heart diamond

This 1.01ct natural heart sits in the classic one-carat band, graded J 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 2426187670. Listed at 18 retailers as of November 5, 2026, with prices from $1,838 to $6,335, a $4,497 spread on the same certified stone. NZ Jewellers lists it at $6,335. 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

1.01
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2426187670
Dimensions6.06 × 6.46 × 4.09 mm
L/W Ratio1.07
Top View
6.06 mm6.46 mm1.01 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2426187670
Side View
Table 58.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 63.3%

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 6
Current: $1,838 AUD|Low: $1,767 AUD|High: $4,605 AUD|Avg: $2,941 AUD|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1$1,838 AUD
Retailer 7$1,880 AUD
Retailer 9$2,396 AUD
Retailer 8$2,503 AUD
Retailer 2$2,717 AUD
Retailer 4$2,883 AUD
Retailer 5$3,170 AUD
Retailer 10$3,388 AUD
Retailer 3$3,525 AUD
Retailer 6$4,550 AUD

36 data points across 10 retailers

18 retailers$1,838 AUD to $6,335 AUD

A
Cheapest Retailer
-
$1,838 AUD
A
Retailer 2
-
$1,880 AUD
View
B+
Retailer 3
-
$2,384 AUD
View
B+
Retailer 4
-
$2,396 AUD
View
Final sale: no returns
B+
Retailer 5
-
$2,503 AUD
View
Retailer 6
-
$2,598 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$2,598 AUD
View
B+
Retailer 8
-
$2,611 AUD
View
B+
Retailer 9
-
$2,717 AUD
View
B
Retailer 10
-
$2,832 AUD
View
B
Retailer 11
-
$2,883 AUD
View
B
Retailer 12
-
$2,997 AUD
View
B+
Retailer 13
-
$3,170 AUD
View
Retailer 14
-
$3,388 AUD
View
Price last confirmed 33 days ago
B
Retailer 15
-
$3,525 AUD
View
B
Retailer 16
-
$4,550 AUD
View
B
Retailer 17
-
$5,750 AUD
View
Most Expensive
C
NZ Jewellers
5dcfe42a-ebad-4a1a-8c6f-ecc666908a7a · Nov 5
$6,335 AUD
$4,353 USD
View
17 more retailers have this diamond
Prices start from $1,838 AUDSave up to $4,497 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
1.01ct Heart
$1,838 AUD