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Heart|Natural|HRD

1.03ct J SI1 Heart Natural Diamond

EX • J/SI1 • HRD 170003042404

Certificate HRD 170003042404

Diamond specifications and retailer prices

From $4,020 AUD
As of November 5, 2026
Save $3,305 AUD (45%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $7,325 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct natural heart diamond

This 1.03ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 170003042404. Listed at 3 retailers as of November 4, 2026, with prices from $4,020 to $7,325, a $3,305 spread on the same certified stone. MOH London lists it at $7,325. 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

1.03
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 170003042404
Dimensions6.18 × 7.14 × 3.64 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
6.18 mm7.14 mm1.03 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateHRD 170003042404
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: NoneDepth 51.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $7,325 AUD|Low: $4,020 AUD|High: $7,434 AUD|Avg: $5,030 AUD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5$4,020 AUD
Retailer 4$4,344 AUD
Retailer 2$4,705 AUD
Retailer 3$4,726 AUD
MOH London$7,325 AUD

37 data points across 5 retailers

3 retailers$4,020 AUD to $7,325 AUD

B
Cheapest Retailer
-
$4,020 AUD
B
Retailer 2
-
$4,705 AUD
View
Most Expensive
C
MOH London
1C8966880 · Nov 4
$7,325 AUD
£3,963 GBP
View
2 more retailers have this diamond
Prices start from $4,020 AUDSave up to $3,305 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
1.03ct Heart
$4,020 AUD