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Heart|Natural|HRD

1.25ct I SI1 Heart Natural Diamond

VG • I/SI1 • HRD 180000094707

Certificate HRD 180000094707

Diamond specifications and retailer prices

From $4,023 AUD
As of November 5, 2026
Save $3,476 AUD (46%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $7,499 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.25ct natural heart diamond

This 1.25ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by HRD 180000094707. Listed at 3 retailers as of November 4, 2026, with prices from $4,023 to $7,499, a $3,476 spread on the same certified stone. MOH London lists it at $7,499. 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

1.25
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabHRD
CertificateHRD 180000094707
Dimensions6.53 × 7.57 × 3.16 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
6.53 mm7.57 mm1.25 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateHRD 180000094707
Side View
Table 65.0%CrownGirdle: Extremely ThickPavilionCuletDepth 41.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $7,499 AUD|Low: $4,023 AUD|High: $7,610 AUD|Avg: $5,116 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 5$4,023 AUD
Retailer 4$4,452 AUD
Retailer 2$4,708 AUD
Retailer 3$4,836 AUD
MOH London$7,499 AUD

37 data points across 5 retailers

3 retailers$4,023 AUD to $7,499 AUD

B+
Cheapest Retailer
-
$4,023 AUD
B
Retailer 2
-
$4,708 AUD
View
Most Expensive
C
MOH London
A1BA5925D · Nov 4
$7,499 AUD
£4,057 GBP
View
2 more retailers have this diamond
Prices start from $4,023 AUDSave up to $3,476 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+
1.25ct Heart
$4,023 AUD