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Heart|Natural|GIA

1.21ct E SI2 Heart Natural Diamond

EX • E/SI2 • GIA 6562164617

Certificate GIA 6562164617

Diamond specifications and retailer prices

From $3,854 AUD
$2,707 USD
As of October 31, 2026
Save $3,344 AUD (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,649 AUD at NZ Jewellers · As of September 30, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562164617. Listed at 13 retailers as of October 31, 2026, with a 87% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.89°
Pavilion angle44.41°
OriginNatural
Grading LabGIA
CertificateGIA 6562164617
Dimensions6.38 × 7.31 × 4.53 mm
L/W Ratio1.15
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.38 mm7.31 mm1.21 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6562164617
Side View
Table 59.0%Crown 36.89°Girdle: Very ThickPavilion 44.41°Culet: NoneDepth 61.9%

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: Oct 31
Current: $4,507 AUD|Low: $3,168 AUD|High: $7,431 AUD|Avg: $4,602 AUD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 9$3,749 AUD
Retailer 4$3,854 AUD
Retailer 6$3,972 AUD
Retailer 7$4,074 AUD
Retailer 8$4,390 AUD
Retailer 1$4,507 AUD
Retailer 3$4,601 AUD
Retailer 5$5,039 AUD
Retailer 2$7,198 AUD

43 data points across 9 retailers

13 retailers$3,854 AUD to $7,198 AUD

B+
Cheapest Retailer
-
$3,854 AUD
$2,707 USD
B+
Retailer 2
-
$3,972 AUD
$2,790 USD
View
Final sale: no returns
B+
Retailer 3
-
$4,074 AUD
$2,862 USD
View
Retailer 4
-
$4,390 AUD
$3,084 USD
View
Price last confirmed 31 days ago
Retailer 5
-
$4,390 AUD
$3,084 USD
View
Price last confirmed 24 days ago
B+
Retailer 6
-
$4,507 AUD
$3,166 USD
View
Retailer 7
-
$4,558 AUD
$3,202 USD
View
Price last confirmed 31 days ago
B+
Retailer 8
-
$4,601 AUD
£2,545 GBP
View
B+
Retailer 9
-
$5,039 AUD
€3,371 EUR
View
Retailer 10
-
$5,065 AUD
$3,558 USD
View
Price last confirmed 33 days ago
Retailer 11
-
$5,065 AUD
$3,558 USD
View
Price last confirmed 47 days ago
B
Retailer 12
-
$7,198 AUD
£3,981 GBP
View
Most Expensive
NZ Jewellers
e5a798fc-8553-4d46-93e8-c1bc68cbe838 · Sep 30
$7,649 AUD
$5,373 USD
View
Price last confirmed 32 days ago
12 more retailers have this diamond
Prices start from $3,854 AUDSave up to $3,344 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
$3,854 AUD