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Heart|Natural|HRD

1.20ct I SI2 Heart Natural Diamond

I/SI2 • HRD 170003049513

Certificate HRD 170003049513

Diamond specifications and retailer prices

From $3,401 AUD
As of November 5, 2026
Save $3,088 AUD (48%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $6,490 AUD at MOH London · As of November 7, 2026
View at MOH London

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included) and certified by HRD 170003049513. Listed at 3 retailers as of November 5, 2026, with prices from $3,401 to $6,490, a $3,088 spread on the same certified stone. MOH London lists it at $6,490. 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

1.20
Carat
I
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 170003049513
Dimensions6.98 × 7.04 × 3.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.98 mm7.04 mm1.20 ctI / SI2
OriginNatural
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateHRD 170003049513
Side View
Table 58.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 51.0%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $6,490 AUD|Low: $3,401 AUD|High: $6,604 AUD|Avg: $4,516 AUD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 7, 2026
Retailer 4$3,401 AUD
Retailer 3$3,783 AUD
Retailer 2$4,347 AUD
MOH London$6,490 AUD

25 data points across 4 retailers

3 retailers$3,401 AUD to $6,490 AUD

B
Cheapest Retailer
-
$3,401 AUD
B
Retailer 2
-
$4,347 AUD
View
Most Expensive
C
MOH London
E88775563 · Nov 7
$6,490 AUD
£3,511 GBP
View
2 more retailers have this diamond
Prices start from $3,401 AUDSave up to $3,088 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
1.20ct Heart
$3,401 AUD