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Heart|Natural|HRD

1.21ct E SI2 Heart Natural Diamond

ID • E/SI2 • HRD 260000244688

Certificate HRD 260000244688

Diamond specifications and retailer prices

From $2,518 AUD
$1,769 USD
As of October 31, 2026
Save $3,038 AUD (55%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $5,556 AUD at MOH London · As of November 1, 2026
View at MOH London

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 HRD 260000244688. Listed at 4 retailers as of October 31, 2026, with prices from $2,518 to $5,556, a $3,038 spread on the same certified stone. MOH London lists it at $5,556. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 260000244688
Dimensions6.51 × 7.38 × 4.26 mm
L/W Ratio1.13
Top View
6.51 mm7.38 mm1.21 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 260000244688
Side View
Table 60.0%CrownGirdle: MediumPavilionCuletDepth 57.7%

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: Oct 31
Current: $5,556 AUD|Low: $2,427 AUD|High: $5,585 AUD|Avg: $3,483 AUD|+3.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 3$2,518 AUD
Retailer 4$2,927 AUD
Retailer 2$3,369 AUD
MOH London$5,556 AUD

18 data points across 4 retailers

4 retailers$2,518 AUD to $5,556 AUD

A
Cheapest Retailer
-
$2,518 AUD
$1,769 USD
A
Retailer 2
-
$2,927 AUD
$2,056 USD
View
Final sale: no returns
B+
Retailer 3
-
$3,369 AUD
$2,366 USD
View
Most Expensive
B
MOH London
1F3C03D42 · Nov 1
$5,556 AUD
£3,073 GBP
View
3 more retailers have this diamond
Prices start from $2,518 AUDSave up to $3,038 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
$2,518 AUD