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Heart|Natural|GIA

0.51ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 6562449878

Certificate GIA 6562449878

Diamond specifications and retailer prices

From $924 AUD
As of November 6, 2026
Save $464 AUD (33%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,388 AUD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562449878. Listed at 8 retailers as of November 6, 2026, with prices from $924 to $1,388, a $464 spread on the same certified stone. Wholesale Diamonds Direct lists it at $1,388. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.85°
Pavilion angle39.77°
OriginNatural
Grading LabGIA
CertificateGIA 6562449878
Dimensions4.89 × 5.55 × 3.24 mm
L/W Ratio1.13
Culet sizeNone
Top View
4.89 mm5.55 mm0.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6562449878
Side View
Table 59.0%Crown 37.85°Girdle: THN-VTKPavilion 39.77°Culet: NoneDepth 58.3%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $1,078 AUD|Low: $924 AUD|High: $1,388 AUD|Avg: $1,138 AUD|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
November 7, 2026
Retailer 5$924 AUD
Retailer 3$929 AUD
Retailer 6$988 AUD
Retailer 1$1,078 AUD
Retailer 4$1,087 AUD
Retailer 7$1,204 AUD
Retailer 2$1,358 AUD
Wholesale Diamonds Direct$1,388 AUD

25 data points across 8 retailers

8 retailers$924 AUD to $1,388 AUD

B+
Cheapest Retailer
-
$924 AUD
B+
Retailer 2
-
$929 AUD
View
B
Retailer 3
-
$988 AUD
View
B+
Retailer 4
-
$1,078 AUD
View
B+
Retailer 5
-
$1,087 AUD
View
B
Retailer 6
-
$1,204 AUD
View
B
Retailer 7
-
$1,358 AUD
View
Most Expensive
B
Wholesale Diamonds Direct
564998639 · Nov 6
$1,388 AUD
$954 USD
View
7 more retailers have this diamond
Prices start from $924 AUDSave up to $464 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+
0.51ct Heart
$924 AUD