CaratHunter
Plans
Heart|Natural|GIA

1.02ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 2548375533

Certificate GIA 2548375533

Diamond specifications and retailer prices

From $2,325 NZD
As of November 6, 2026
Save $2,902 NZD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,926 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2548375533. Listed at 16 retailers as of November 2, 2026, with a 125% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.02
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.8°
OriginNatural
Grading LabGIA
CertificateGIA 2548375533
Dimensions6.08 × 6.87 × 4.11 mm
L/W Ratio1.13
Top View
6.08 mm6.87 mm1.02 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2548375533
Side View
Table 57.0%CrownGirdle: STK-VTKPavilion 38.8°Culet: NoneDepth 59.8%

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: $3,418 NZD|Low: $2,305 NZD|High: $5,579 NZD|Avg: $3,329 NZD|+0.2%
Retailer 1
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
November 5, 2026
Retailer 5$2,325 NZD
Retailer 3$2,331 NZD
Retailer 4$2,497 NZD
Retailer 10$2,580 NZD
Retailer 9$2,715 NZD
Retailer 14$2,814 NZD
Retailer 12$2,868 NZD
Retailer 2$3,270 NZD
Retailer 8$3,310 NZD
Retailer 1$3,418 NZD
Retailer 7$3,642 NZD
Retailer 6$4,106 NZD
Retailer 11$4,696 NZD
Retailer 13$5,228 NZD

32 data points across 14 retailers

16 retailers$2,325 NZD to $5,228 NZD

A
Cheapest Retailer
-
$2,325 NZD
A
Retailer 2
-
$2,331 NZD
View
A
Retailer 3
-
$2,497 NZD
View
Final sale: no returns
A
Retailer 4
-
$2,580 NZD
View
A
Retailer 5
-
$2,715 NZD
View
A
Retailer 6
-
$2,814 NZD
View
A
Retailer 7
-
$2,868 NZD
View
B+
Retailer 8
-
$3,270 NZD
View
B+
Retailer 9
-
$3,310 NZD
View
B+
Retailer 10
-
$3,418 NZD
View
B+
Retailer 11
-
$3,584 NZD
View
B+
Retailer 12
-
$3,642 NZD
View
Retailer 13
-
$4,106 NZD
View
Price last confirmed 33 days ago
B
Retailer 14
-
$4,696 NZD
View
B
Retailer 15
-
$5,228 NZD
View
Most Expensive
NZ Jewellers
157135bd-ede5-4402-b9ba-a6e43665365f · Sep 25
$7,926 NZD
$4,394 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from $2,325 NZDSave up to $2,902 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
$2,325 NZD