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Heart|Natural|GIA

0.73ct E SI1 Heart Natural Diamond

E/SI1 • GIA 1558686920

Certificate GIA 1558686920

Diamond specifications and retailer prices

From $1,137 AUD
As of November 4, 2026
Save $2,723 AUD (71%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,860 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.73ct natural heart diamond

This 0.73ct natural heart sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 1558686920. Listed at 3 retailers as of November 4, 2026, with prices from $1,137 to $3,860, a $2,723 spread on the same certified stone. NZ Jewellers lists it at $3,860. 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

0.73
Carat
E
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1558686920
Dimensions5.36 × 6.17 × 3.72 mm
L/W Ratio1.15
Key to symbols
Cloud, Crystal, Twinning Wisp
Top View
5.36 mm6.17 mm0.73 ctE / SI1
OriginNatural
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1558686920
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.3%

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 4
Current: $3,860 AUD|Low: $987 AUD|High: $4,385 AUD|Avg: $2,305 AUD|-12.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 4, 2026
Retailer 3$1,137 AUD
Retailer 4$1,843 AUD
Retailer 5$1,982 AUD
Retailer 2$2,250 AUD
NZ Jewellers$3,860 AUD

21 data points across 5 retailers

3 retailers$1,137 AUD to $3,860 AUD

B+
Cheapest Retailer
-
$1,137 AUD
Final sale: no returns
B
Retailer 2
-
$2,250 AUD
View
Most Expensive
C
NZ Jewellers
978c5166-6141-4e34-b594-fbae4ac6cfd9 · Nov 5
$3,860 AUD
$2,652 USD
View
2 more retailers have this diamond
Prices start from $1,137 AUDSave up to $2,723 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+
0.73ct Heart
$1,137 AUD