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Heart|Natural|GIA

0.51ct G SI2 Heart Natural Diamond

VG • G/SI2 • GIA 7563442465

Certificate GIA 7563442465

Diamond specifications and retailer prices

From $480 AUD
As of November 4, 2026
Save $1,722 AUD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,421 AUD at Queensmith · As of October 27, 2026
View at Queensmith

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 7563442465. Listed at 11 retailers as of November 4, 2026, with a 358% 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7563442465
Dimensions5.60 × 4.89 × 3.25 mm
L/W Ratio1.15
Top View
5.60 mm4.89 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7563442465
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.0%

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 4
Current: $2,421 AUD|Low: $480 AUD|High: $2,440 AUD|Avg: $1,148 AUD|+2.3%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11$480 AUD
Retailer 8$619 AUD
Retailer 2$681 AUD
Retailer 9$719 AUD
Retailer 5$742 AUD
Retailer 10$764 AUD
Retailer 3$853 AUD
Retailer 4$1,035 AUD
Retailer 6$1,324 AUD
Retailer 7$2,202 AUD
Queensmith$2,421 AUD

29 data points across 11 retailers

11 retailers$480 AUD to $2,202 AUD

A
Cheapest Retailer
-
$480 AUD
A
Retailer 2
-
$619 AUD
View
A
Retailer 3
-
$681 AUD
View
A
Retailer 4
-
$719 AUD
View
B+
Retailer 5
-
$742 AUD
View
B+
Retailer 6
-
$764 AUD
View
B+
Retailer 7
-
$853 AUD
View
B
Retailer 8
-
$1,035 AUD
View
B
Retailer 9
-
$1,324 AUD
View
B
Retailer 10
-
$2,202 AUD
View
Most Expensive
Queensmith
7563442465 · Oct 27
$2,421 AUD
£1,310 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $480 AUDSave up to $1,722 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
$480 AUD