CaratHunter
Plans
Heart|Natural|GIA

0.73ct F SI1 Heart Natural Diamond

GD • F/SI1 • GIA 5563255187

Certificate GIA 5563255187

Diamond specifications and retailer prices

From $1,156 AUD
$810 USD
As of November 1, 2026
Save $153 AUD (12%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,308 AUD at Blue Nile · As of November 3, 2026
View at Blue Nile

About this 0.73ct natural heart diamond

This 0.73ct natural heart sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5563255187. Listed at 4 retailers as of November 1, 2026, with a relatively tight 13% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5563255187
Dimensions5.47 × 6.38 × 3.55 mm
L/W Ratio1.17
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
5.47 mm6.38 mm0.73 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5563255187
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 55.7%

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 1
Current: $1,308 AUD|Low: $1,156 AUD|High: $1,403 AUD|Avg: $1,225 AUD|-6.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 3, 2026
Retailer 3$1,156 AUD
Retailer 4$1,182 AUD
Retailer 2$1,251 AUD
Blue Nile$1,308 AUD

40 data points across 4 retailers

4 retailers$1,156 AUD to $1,308 AUD

B+
Cheapest Retailer
-
$1,156 AUD
$810 USD
B+
Retailer 2
-
$1,182 AUD
SGD 1,119 SGD
View
B
Retailer 3
-
$1,251 AUD
£690 GBP
View
Most Expensive
B
Blue Nile
30160364 · Nov 3
$1,308 AUD
$917 USD
View
3 more retailers have this diamond
Prices start from $1,156 AUDSave up to $153 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
$1,156 AUD