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Heart|Natural|GIA

0.51ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 7522763219

Certificate GIA 7522763219

Diamond specifications and retailer prices

From $763 AUD
As of November 6, 2026
Save $1,348 AUD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,869 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7522763219. Listed at 18 retailers as of November 4, 2026, with a 177% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7522763219
Dimensions4.69 × 5.38 × 3.28 mm
L/W Ratio1.15
Girdle conditionFaceted
Key to symbols
Cloud, Crystal
Top View
4.69 mm5.38 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7522763219
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.1%

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: $1,116 AUD|Low: $773 AUD|High: $2,138 AUD|Avg: $1,200 AUD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$844 AUD
Retailer 3$866 AUD
Retailer 4$952 AUD
Retailer 2$985 AUD
Retailer 5$1,115 AUD
Retailer 1$1,116 AUD
Retailer 8$1,145 AUD
Retailer 11$1,186 AUD
Retailer 10$1,375 AUD
Retailer 6$1,412 AUD
Retailer 7$2,110 AUD

40 data points across 11 retailers

18 retailers$763 AUD to $2,110 AUD

A
Cheapest Retailer
-
$763 AUD
B+
Retailer 2
-
$844 AUD
View
Final sale: no returns
B+
Retailer 3
-
$866 AUD
View
B+
Retailer 4
-
$915 AUD
View
B+
Retailer 5
-
$952 AUD
View
Retailer 6
-
$985 AUD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$985 AUD
View
B+
Retailer 8
-
$1,055 AUD
View
B
Retailer 9
-
$1,106 AUD
View
B
Retailer 10
-
$1,115 AUD
View
B+
Retailer 11
-
$1,116 AUD
View
B+
Retailer 12
-
$1,145 AUD
View
B
Retailer 13
-
$1,186 AUD
View
B
Retailer 14
-
$1,260 AUD
View
Retailer 15
-
$1,375 AUD
View
Price last confirmed 34 days ago
B
Retailer 16
-
$1,412 AUD
View
B
Retailer 17
-
$2,110 AUD
View
Most Expensive
NZ Jewellers
42b6d008-791f-4a5b-a875-9cbc7061b94a · Nov 5
$2,869 AUD
$1,971 USD
View
Price under review
17 more retailers have this diamond
Prices start from $763 AUDSave up to $1,348 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
$763 AUD