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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 $2,055 NZD
As of November 6, 2026
Save $2,803 NZD (58%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,728 NZD 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: $2,847 NZD|Low: $2,008 NZD|High: $5,617 NZD|Avg: $3,321 NZD|-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$2,055 NZD
Retailer 10$2,567 NZD
Retailer 7$2,625 NZD
Retailer 2$2,643 NZD
Retailer 4$2,755 NZD
Retailer 1$2,847 NZD
Retailer 11$3,211 NZD
Retailer 5$3,393 NZD
Retailer 3$3,999 NZD
Retailer 8$4,284 NZD
Retailer 6$4,858 NZD

36 data points across 11 retailers

13 retailers$2,055 NZD to $4,858 NZD

A
Cheapest Retailer
-
$2,055 NZD
B+
Retailer 2
-
$2,567 NZD
View
Final sale: no returns
A
Retailer 3
-
$2,625 NZD
View
B+
Retailer 4
-
$2,643 NZD
View
B+
Retailer 5
-
$2,755 NZD
View
B+
Retailer 6
-
$2,847 NZD
View
B+
Retailer 7
-
$3,211 NZD
View
B+
Retailer 8
-
$3,393 NZD
View
B
Retailer 9
-
$3,397 NZD
View
Retailer 10
-
$3,999 NZD
View
Price last confirmed 33 days ago
B
Retailer 11
-
$4,284 NZD
View
B
Retailer 12
-
$4,858 NZD
View
Most Expensive
NZ Jewellers
577dbbf2-e4f9-4d25-b494-48a335be80a6 · Sep 25
$7,728 NZD
$4,284 USD
View
Price last confirmed 42 days ago
12 more retailers have this diamond
Prices start from $2,055 NZDSave up to $2,803 NZD

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
$2,055 NZD