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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 $3,494 AUD
As of November 6, 2026
Save $4,906 AUD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,401 AUD 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 $3,494 to $8,401, a $4,906 spread on the same certified stone. NZ Jewellers lists it at $8,401. 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: $3,494 AUD|Low: $3,494 AUD|High: $8,162 AUD|Avg: $5,140 AUD|-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$3,494 AUD
Retailer 8$3,540 AUD
Retailer 7$4,369 AUD
Retailer 9$4,451 AUD
Retailer 2$4,804 AUD
Retailer 4$4,932 AUD
Retailer 5$4,989 AUD
Retailer 3$5,613 AUD
Retailer 6$8,041 AUD

28 data points across 9 retailers

18 retailers$3,494 AUD to $8,401 AUD

B+
Cheapest Retailer
-
$3,494 AUD
B+
Retailer 2
-
$3,540 AUD
View
B
Retailer 3
-
$4,117 AUD
View
B
Retailer 4
-
$4,369 AUD
View
B
Retailer 5
-
$4,451 AUD
View
Final sale: no returns
B
Retailer 6
-
$4,804 AUD
View
Retailer 7
-
$4,822 AUD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$4,822 AUD
View
B
Retailer 9
-
$4,932 AUD
View
B
Retailer 10
-
$4,989 AUD
View
B
Retailer 11
-
$5,008 AUD
View
B
Retailer 12
-
$5,031 AUD
View
B
Retailer 13
-
$5,161 AUD
View
B
Retailer 14
-
$5,564 AUD
View
B
Retailer 15
-
$5,613 AUD
View
B
Retailer 16
-
$5,893 AUD
View
B
Retailer 17
-
$8,041 AUD
View
Most Expensive
B
NZ Jewellers
829fc394-96e8-45d4-8f62-a4f1fc867efa · Nov 5
$8,401 AUD
$5,772 USD
View
17 more retailers have this diamond
Prices start from $3,494 AUDSave up to $4,906 AUD

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
$3,494 AUD