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Heart|Natural|GIA

1.02ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 2406157190

Certificate GIA 2406157190

Diamond specifications and retailer prices

From $3,108 NZD
As of November 5, 2026
Save $2,459 NZD (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,026 NZD at NZ Jewellers · As of October 21, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2406157190. Listed at 8 retailers as of November 5, 2026, with a 79% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2406157190
Dimensions6.71 × 7.07 × 3.43 mm
L/W Ratio1.05
Top View
6.71 mm7.07 mm1.02 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2406157190
Side View
Table 55.0%CrownGirdlePavilionCulet: NoneDepth 48.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,108 NZD|Low: $3,108 NZD|High: $6,806 NZD|Avg: $4,423 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 23, 2026
Retailer 1$3,108 NZD
Retailer 7$3,478 NZD
Retailer 5$3,638 NZD
Retailer 6$4,014 NZD
Retailer 3$4,104 NZD
Retailer 2$5,206 NZD
Retailer 4$6,763 NZD

30 data points across 7 retailers

8 retailers$3,108 NZD to $5,567 NZD

B+
Cheapest Retailer
-
$3,108 NZD
Retailer 2
-
$3,478 NZD
View
Price last confirmed 15 days ago
Retailer 3
-
$3,638 NZD
View
Price last confirmed 15 days ago
Retailer 4
-
$4,014 NZD
View
Price last confirmed 16 days ago
Retailer 5
-
$4,104 NZD
View
Price last confirmed 14 days ago
B
Retailer 6
-
$5,567 NZD
View
Retailer 7
-
$6,763 NZD
View
Price last confirmed 16 days ago
Most Expensive
NZ Jewellers
6096feb6-8479-4300-b16c-87fba20c77de · Oct 21
$8,026 NZD
$4,449 USD
View
Price last confirmed 16 days ago
7 more retailers have this diamond
Prices start from $3,108 NZDSave up to $2,459 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.

B+
1.02ct Heart
$3,108 NZD