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Heart|Natural|HRD

1.73ct I IF Heart Natural Diamond

GD • I/IF • HRD 260000051781

Certificate HRD 260000051781

Diamond specifications and retailer prices

From $11,665 AUD
As of November 6, 2026
Save $9,473 AUD (45%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $21,138 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.73ct natural heart diamond

This 1.73ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by HRD 260000051781. Listed at 10 retailers as of November 5, 2026, with prices from $11,665 to $21,138, a $9,473 spread on the same certified stone. NZ Jewellers lists it at $21,138. 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

1.73
Carat
I
Colour
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabHRD
CertificateHRD 260000051781
Dimensions6.78 × 7.52 × 4.69 mm
L/W Ratio1.11
Top View
6.78 mm7.52 mm1.73 ctI / IF
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateHRD 260000051781
Side View
Table 69.0%CrownGirdlePavilionCuletDepth 62.4%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $21,138 AUD|Low: $11,665 AUD|High: $21,138 AUD|Avg: $14,358 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9$11,665 AUD
Retailer 8$11,666 AUD
Retailer 3$11,672 AUD
Retailer 6$12,639 AUD
Retailer 5$12,832 AUD
Retailer 2$13,732 AUD
Retailer 7$14,583 AUD
Retailer 4$17,567 AUD
NZ Jewellers$21,138 AUD

41 data points across 9 retailers

10 retailers$11,665 AUD to $21,138 AUD

B+
Cheapest Retailer
-
$11,665 AUD
Final sale: no returns
Retailer 2
-
$11,666 AUD
View
Price last confirmed 12 days ago
B+
Retailer 3
-
$11,672 AUD
View
B
Retailer 4
-
$12,639 AUD
View
B
Retailer 5
-
$12,832 AUD
View
B
Retailer 6
-
$13,732 AUD
View
B
Retailer 7
-
$14,583 AUD
View
Retailer 8
-
$14,583 AUD
View
Price last confirmed 14 days ago
B
Retailer 9
-
$17,567 AUD
View
Most Expensive
C
NZ Jewellers
0c3fbd4a-2de8-4347-aea7-9b996f4eb7a7 · Nov 5
$21,138 AUD
$14,524 USD
View
9 more retailers have this diamond
Prices start from $11,665 AUDSave up to $9,473 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+
1.73ct Heart
$11,665 AUD