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Heart|Natural|HRD

0.91ct J SI1 Heart Natural Diamond

GD • J/SI1 • HRD 180000100222

Certificate HRD 180000100222

Diamond specifications and retailer prices

From $3,860 AUD
£2,130 GBP
As of November 2, 2026
Save $2,394 AUD (38%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $6,254 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by HRD 180000100222. Listed at 3 retailers as of November 2, 2026, with prices from $3,860 to $6,254, a $2,394 spread on the same certified stone. MOH London lists it at $6,254. 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

0.91
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabHRD
CertificateHRD 180000100222
Dimensions5.78 × 6.34 × 2.83 mm
L/W Ratio1.10
Girdle conditionFaceted
Top View
5.78 mm6.34 mm0.91 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateHRD 180000100222
Side View
Table 68.0%CrownGirdle: Extremely ThickPavilionCuletDepth 44.6%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 2
Current: $6,254 AUD|Low: $3,713 AUD|High: $6,330 AUD|Avg: $4,727 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$3,860 AUD
Retailer 2$4,179 AUD
MOH London$6,254 AUD

39 data points across 3 retailers

3 retailers$3,860 AUD to $6,254 AUD

C
Cheapest Retailer
-
$3,860 AUD
£2,130 GBP
C
Retailer 2
-
$4,179 AUD
€2,789 EUR
View
Most Expensive
C
MOH London
D5AD79876 · Nov 2
$6,254 AUD
£3,451 GBP
View
2 more retailers have this diamond
Prices start from $3,860 AUDSave up to $2,394 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.

C
0.91ct Heart
$3,860 AUD