CaratHunter
Plans
Heart|Natural|GIA

0.51ct F SI1 Heart Natural Diamond

GD • F/SI1 • GIA 7523261009

Certificate GIA 7523261009

Diamond specifications and retailer prices

From $585 AUD
As of November 6, 2026
Save $163 AUD (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $748 AUD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 0.51ct natural heart diamond

This 0.51ct 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 7523261009. Listed at 4 retailers as of November 6, 2026, with prices from $585 to $748, a $163 spread on the same certified stone. 77 Diamonds lists it at $748. 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

0.51
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7523261009
Dimensions4.73 × 5.59 × 3.17 mm
L/W Ratio1.18
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
4.73 mm5.59 mm0.51 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7523261009
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 56.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $748 AUD|Low: $538 AUD|High: $829 AUD|Avg: $659 AUD|-8.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 7, 2026
Retailer 4$585 AUD
Retailer 2$607 AUD
Retailer 3$656 AUD
77 Diamonds$748 AUD

42 data points across 4 retailers

4 retailers$585 AUD to $748 AUD

A
Cheapest Retailer
-
$585 AUD
A
Retailer 2
-
$607 AUD
View
Final sale: no returns
B+
Retailer 3
-
$656 AUD
View
Most Expensive
B+
77 Diamonds
HSCPAMVNJBKP · Nov 7
$748 AUD
£405 GBP
View
3 more retailers have this diamond
Prices start from $585 AUDSave up to $163 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.

A
0.51ct Heart
$585 AUD