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Heart|Natural|GIA

0.51ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 5563831802

Certificate GIA 5563831802

Diamond specifications and retailer prices

From $946 AUD
As of November 6, 2026
Save $581 AUD (38%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,527 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 5563831802. Listed at 6 retailers as of November 6, 2026, with prices from $946 to $1,527, a $581 spread on the same certified stone. Wholesale Diamonds Direct lists it at $1,527. 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 angle36.49°
Pavilion angle37.95°
OriginNatural
Grading LabGIA
CertificateGIA 5563831802
Dimensions4.95 × 5.65 × 3.21 mm
L/W Ratio1.14
Culet sizeNone
Top View
4.95 mm5.65 mm0.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5563831802
Side View
Table 57.0%Crown 36.49°Girdle: THN-THKPavilion 37.95°Culet: NoneDepth 56.8%

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: $1,134 AUD|Low: $946 AUD|High: $1,527 AUD|Avg: $1,230 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Wholesale Diamonds Direct
November 7, 2026
Retailer 2$946 AUD
Retailer 4$1,022 AUD
Retailer 1$1,134 AUD
Retailer 5$1,201 AUD
Retailer 3$1,501 AUD
Wholesale Diamonds Direct$1,527 AUD

2 data points across 6 retailers

6 retailers$946 AUD to $1,527 AUD

B+
Cheapest Retailer
-
$946 AUD
B+
Retailer 2
-
$1,022 AUD
View
Retailer 3
-
$1,134 AUD
View
B
Retailer 4
-
$1,201 AUD
View
B
Retailer 5
-
$1,501 AUD
View
Most Expensive
B
Wholesale Diamonds Direct
685102832 · Nov 6
$1,527 AUD
$1,049 USD
View
5 more retailers have this diamond
Prices start from $946 AUDSave up to $581 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
$946 AUD