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Heart|Natural|GIA

1.21ct E SI2 Heart Natural Diamond

EX • E/SI2 • GIA 6542545800

Certificate GIA 6542545800

Diamond specifications and retailer prices

From $2,984 AUD
£1,651 GBP
As of November 1, 2026
Save $3,325 AUD (53%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,309 AUD at NZ Jewellers · As of October 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 6542545800. Listed at 6 retailers as of October 30, 2026, with prices from $2,984 to $6,309, a $3,325 spread on the same certified stone. NZ Jewellers lists it at $6,309. 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
SymmetryExcellent
FluorescenceNone
Crown angle44.07°
Pavilion angle40.07°
OriginNatural
Grading LabGIA
CertificateGIA 6542545800
Dimensions6.37 × 7.05 × 4.45 mm
L/W Ratio1.11
Top View
6.37 mm7.05 mm1.21 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542545800
Side View
Table 61.0%Crown 44.07°Girdle: MED-VTKPavilion 40.07°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $6,309 AUD|Low: $2,984 AUD|High: $6,391 AUD|Avg: $3,964 AUD|-1.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2$2,984 AUD
Retailer 5$3,018 AUD
Retailer 6$3,158 AUD
Retailer 7$3,214 AUD
Retailer 3$3,691 AUD
Retailer 8$3,703 AUD
Retailer 11$3,711 AUD
Retailer 9$3,801 AUD
Retailer 10$4,053 AUD
Retailer 4$5,315 AUD
NZ Jewellers$6,309 AUD

30 data points across 11 retailers

6 retailers$2,984 AUD to $6,309 AUD

A
Cheapest Retailer
-
$2,984 AUD
£1,651 GBP
A
Retailer 2
-
$3,018 AUD
$2,120 USD
View
A
Retailer 3
-
$3,158 AUD
$2,218 USD
View
A
Retailer 4
-
$3,214 AUD
$2,258 USD
View
B+
Retailer 5
-
$5,315 AUD
£2,940 GBP
View
Most Expensive
B
NZ Jewellers
beba394f-2a39-4cb9-9660-3e3eea33b07b · Oct 30
$6,309 AUD
$4,432 USD
View
5 more retailers have this diamond
Prices start from $2,984 AUDSave up to $3,325 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.

A
1.21ct Heart
$2,984 AUD