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Heart|Natural|GIA

0.51ct G SI2 Heart Natural Diamond

VG • G/SI2 • GIA 2536527442

Certificate GIA 2536527442

Diamond specifications and retailer prices

From $515 AUD
As of November 6, 2026
Save $1,115 AUD (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,710 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2536527442. Listed at 15 retailers as of November 4, 2026, with a 216% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2536527442
Dimensions4.87 × 5.18 × 3.40 mm
L/W Ratio1.06
Top View
4.87 mm5.18 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceStrong
CertificateGIA 2536527442
Side View
Table 57.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 65.7%

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: $2,710 AUD|Low: $515 AUD|High: $2,710 AUD|Avg: $991 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$515 AUD
Retailer 10$707 AUD
Retailer 5$736 AUD
Retailer 9$761 AUD
Retailer 11$815 AUD
Retailer 4$840 AUD
Retailer 6$873 AUD
Retailer 3$885 AUD
Retailer 8$956 AUD
Retailer 7$1,630 AUD
NZ Jewellers$2,710 AUD

28 data points across 11 retailers

15 retailers$515 AUD to $1,630 AUD

A
Cheapest Retailer
-
$515 AUD
B+
Retailer 2
-
$595 AUD
View
B+
Retailer 3
-
$707 AUD
View
B+
Retailer 4
-
$736 AUD
View
B+
Retailer 5
-
$761 AUD
View
Retailer 6
-
$761 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$815 AUD
View
B+
Retailer 8
-
$815 AUD
View
B+
Retailer 9
-
$840 AUD
View
B
Retailer 10
-
$873 AUD
View
B
Retailer 11
-
$885 AUD
View
B
Retailer 12
-
$895 AUD
View
B
Retailer 13
-
$956 AUD
View
C
Retailer 14
-
$1,630 AUD
View
Most Expensive
NZ Jewellers
688ba965-f74d-433b-ad69-e509baf7cabe · Nov 5
$2,710 AUD
$1,862 USD
View
Price under review
14 more retailers have this diamond
Prices start from $515 AUDSave up to $1,115 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
$515 AUD