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Heart|Natural|HRD

1.21ct J SI2 Heart Natural Diamond

J/SI2 • HRD 190000181478

Certificate HRD 190000181478

Diamond specifications and retailer prices

From $3,444 AUD
€2,254 EUR
As of November 5, 2026
1 retailer carries this diamond
Only listing: $3,444 AUD at Belgium Diamonds
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Belgium Diamonds

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) and certified by HRD 190000181478. Listed at a single retailer as of November 5, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
J
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 190000181478
Dimensions6.26 × 7.15 × 3.61 mm
L/W Ratio1.14
Top View
6.26 mm7.15 mm1.21 ctJ / SI2
OriginNatural
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateHRD 190000181478
Side View
Table 59.0%CrownGirdlePavilionCuletDepth 50.5%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 5
Current: $3,444 AUD|Low: $3,444 AUD|High: $4,774 AUD|Avg: $3,851 AUD
Belgium Diamonds
Retailer 2
July 13, 2026
Belgium Diamonds$3,444 AUD
Retailer 2$4,317 AUD

25 data points across 2 retailers

1 retailer

C
Belgium Diamonds
430643803 · Nov 5
$3,444 AUD
€2,254 EUR
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C
1.21ct Heart
$3,444 AUD