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Heart|Natural|GIA

1.06ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 1383855506

Certificate GIA 1383855506

Diamond specifications and retailer prices

From $3,394 NZD
As of November 4, 2026
Save $1,937 NZD (36%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,518 NZD at MOH London · As of October 26, 2026
View at MOH London

About this 1.06ct natural heart diamond

This 1.06ct 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 1383855506. Listed at 15 retailers as of November 3, 2026, with a 57% 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

1.06
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1383855506
Dimensions5.86 × 5.68 × 3.91 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeNone
Cert comments
Inscription(s): GIA 1383855506
Top View
5.86 mm5.68 mm1.06 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1383855506
Side View
Table 65.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 68.8%

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 4
Current: $7,518 NZD|Low: $3,083 NZD|High: $7,599 NZD|Avg: $4,526 NZD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 3$3,394 NZD
Retailer 6$3,507 NZD
Retailer 8$3,583 NZD
Retailer 7$3,601 NZD
Retailer 10$3,745 NZD
Retailer 11$3,883 NZD
Retailer 2$4,534 NZD
Retailer 5$5,267 NZD
Retailer 9$5,276 NZD
Retailer 4$5,331 NZD
MOH London$7,518 NZD

43 data points across 11 retailers

15 retailers$3,394 NZD to $5,331 NZD

B+
Cheapest Retailer
-
$3,394 NZD
B+
Retailer 2
-
$3,504 NZD
View
B+
Retailer 3
-
$3,507 NZD
View
B+
Retailer 4
-
$3,583 NZD
View
Final sale: no returns
Retailer 5
-
$3,601 NZD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$3,656 NZD
View
B
Retailer 7
-
$3,745 NZD
View
B
Retailer 8
-
$3,883 NZD
View
B
Retailer 9
-
$3,912 NZD
View
B
Retailer 10
-
$4,235 NZD
View
B
Retailer 11
-
$4,534 NZD
View
B
Retailer 12
-
$5,267 NZD
View
Retailer 13
-
$5,276 NZD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$5,331 NZD
View
Most Expensive
MOH London
30E99A5A2 · Oct 26
$7,518 NZD
£3,337 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $3,394 NZDSave up to $1,937 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+
1.06ct Heart
$3,394 NZD