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Heart|Natural|GIA

1.02ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 2557581515

Certificate GIA 2557581515

Diamond specifications and retailer prices

From $1,658 AUD
As of November 6, 2026
Save $2,262 AUD (58%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,235 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.02ct natural heart diamond

This 1.02ct natural heart sits in the classic one-carat band, graded J 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 2557581515. Listed at 13 retailers as of November 4, 2026, with a 136% 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

1.02
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557581515
Dimensions6.03 × 6.79 × 4.32 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.03 mm6.79 mm1.02 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557581515
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.7%

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: $2,297 AUD|Low: $1,620 AUD|High: $4,532 AUD|Avg: $2,680 AUD|-6.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$1,658 AUD
Retailer 10$2,071 AUD
Retailer 7$2,118 AUD
Retailer 2$2,132 AUD
Retailer 4$2,222 AUD
Retailer 1$2,297 AUD
Retailer 11$2,591 AUD
Retailer 5$2,738 AUD
Retailer 3$3,227 AUD
Retailer 8$3,457 AUD
Retailer 6$3,919 AUD

36 data points across 11 retailers

13 retailers$1,658 AUD to $3,919 AUD

A
Cheapest Retailer
-
$1,658 AUD
B+
Retailer 2
-
$2,071 AUD
View
Final sale: no returns
A
Retailer 3
-
$2,118 AUD
View
B+
Retailer 4
-
$2,132 AUD
View
B+
Retailer 5
-
$2,222 AUD
View
B+
Retailer 6
-
$2,297 AUD
View
B+
Retailer 7
-
$2,591 AUD
View
B+
Retailer 8
-
$2,738 AUD
View
B
Retailer 9
-
$2,741 AUD
View
Retailer 10
-
$3,227 AUD
View
Price last confirmed 32 days ago
B
Retailer 11
-
$3,457 AUD
View
B
Retailer 12
-
$3,919 AUD
View
Most Expensive
NZ Jewellers
577dbbf2-e4f9-4d25-b494-48a335be80a6 · Sep 25
$6,235 AUD
$4,284 USD
View
Price last confirmed 42 days ago
12 more retailers have this diamond
Prices start from $1,658 AUDSave up to $2,262 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
1.02ct Heart
$1,658 AUD