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Heart|Natural|GIA

1.21ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 1419696942

Certificate GIA 1419696942

Diamond specifications and retailer prices

From $4,331 NZD
As of November 6, 2026
Save $6,081 NZD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,412 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct 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 1419696942. Listed at 18 retailers as of November 5, 2026, with prices from $4,331 to $10,412, a $6,081 spread on the same certified stone. NZ Jewellers lists it at $10,412. 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

1.21
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1419696942
Dimensions6.68 × 6.97 × 4.12 mm
L/W Ratio1.04
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Needle, Indented Natural
Top View
6.68 mm6.97 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1419696942
Side View
Table 59.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 59.1%

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 6
Current: $4,331 NZD|Low: $4,331 NZD|High: $10,116 NZD|Avg: $6,371 NZD|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1$4,331 NZD
Retailer 8$4,387 NZD
Retailer 7$5,415 NZD
Retailer 9$5,516 NZD
Retailer 2$5,955 NZD
Retailer 4$6,113 NZD
Retailer 5$6,184 NZD
Retailer 3$6,958 NZD
Retailer 6$9,967 NZD

28 data points across 9 retailers

18 retailers$4,331 NZD to $10,412 NZD

B+
Cheapest Retailer
-
$4,331 NZD
B+
Retailer 2
-
$4,387 NZD
View
B
Retailer 3
-
$5,103 NZD
View
B
Retailer 4
-
$5,415 NZD
View
B
Retailer 5
-
$5,516 NZD
View
Final sale: no returns
B
Retailer 6
-
$5,955 NZD
View
Retailer 7
-
$5,976 NZD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$5,976 NZD
View
B
Retailer 9
-
$6,113 NZD
View
B
Retailer 10
-
$6,184 NZD
View
B
Retailer 11
-
$6,207 NZD
View
B
Retailer 12
-
$6,236 NZD
View
B
Retailer 13
-
$6,397 NZD
View
B
Retailer 14
-
$6,896 NZD
View
B
Retailer 15
-
$6,958 NZD
View
B
Retailer 16
-
$7,304 NZD
View
B
Retailer 17
-
$9,967 NZD
View
Most Expensive
B
NZ Jewellers
829fc394-96e8-45d4-8f62-a4f1fc867efa · Nov 5
$10,412 NZD
$5,772 USD
View
17 more retailers have this diamond
Prices start from $4,331 NZDSave up to $6,081 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+
1.21ct Heart
$4,331 NZD